Apple refreshed the iPad yesterday, delivering few surprises, a market leading product and a set of features that we expect to ensure continued dominance into 2013

Around 125m smartphones and over 20m tablets were sold in Q4 2011. If tablets are included, Apple is now the largest PC manufacturer, while smartphones are now outselling PCs

These devices are the battleground for a war of ecosystems in which Apple’s iOS and Google’s Android platforms are dominant and others are hoping for third place at best. iOS and Android sold around 92m units in Q4 and now have an active base between them of around 515m devices

Samsung now accounts for at least half of Android sales and is in some senses more of a rival to Apple than Android itself

Apple has begun selling interactive textbooks via its iBookstore, a move which is likely to accelerate the digital transition in education

However, the pace of change will be slowed by the cost of devices and the limited number of textbooks that have been designed for tablet computers

By developing educational software and course materials, Apple is trying to position the iPad at the centre of students’ educational lives – a niche that could significantly boost its hardware sales

US album volumes in 2011 rose for the first time since 2004, but lower pricing may continue the revenue decline

UK album volumes declined 5.6% in 2011. HMV’s new-found breathing space removes a key risk for the outlook

US radio royalties to music publishers have been agreed in principle and will see a return to a revenue based payment

Apple has now sold 40m iPads – we estimate 4 to 5m in the UK – and goes into the Christmas season with no credible competitors beyond Amazon’s Kindle Fire, which is so far only available in the USA

Android phones are selling in huge numbers at half the price or less of the iPhone, but would-be iPad competitors are the same price or higher. With the continued absence of a meaningful content ecosystem for Android tablets it is hard to see consumers buying them in substantial numbers

Competing Android tablets have sold around a tenth as many units as the iPad, but others have sold far less: RIM’s PlayBook has been a major disappointment, forcing RIM to write off $485m of inventory

Apple is now a $108bn company, with annual revenue up 66% from a year ago and 40% gross margins. September quarter iPhone sales dipped to 17m ahead of a new product launch, but Apple still sold 72m in the last 12m, compared to 40m in the 12m to September 2010

Apple has now sold 40m iPads for $20.3bn revenue, and 11m in the last quarter. All other competing devices have sold perhaps 4m. We expect Apple’s dominance to continue through 2012 and potentially beyond

Google’s Android sold even more smartphones than Apple, activating 150m in the last 12m and 55m in the September quarter. Yet in October Apple sold 4m of the new iPhone 4S in just three days, bringing in around $2.6bn: Google’s annual run-rate mobile revenue is now $2.5bn

The Guardian has finally launched its iPad app: of the UK’s paid daily newspapers all but the Mirror and Independent now have iPad apps. All of these require payment and all but the FT use Apple’s iTunes billing

Apple has moved to smooth out the buying and reading process with the new Newsstand feature for iPad and iPhone, which adds better discoverability and automatic downloads to the existing subscription offer. This also makes it harder for readers to move to other platforms

There are now 3-4m iPads in the UK: this is more than the 2m people who buy a broadsheet everyday, but it is not clear how many can be converted. Moreover, iPad editions bring in annual revenue per reader of £100-125 where a print reader averages £435: a scale problem remains

Amazon has taken the ereader to $79 and the tablet to $200. The Amazon Fire is everything that Android tablets are not: a coherent high-quality user experience rather than a box of components. It will sell well, while new sub-$100 Kindles will reinforce Amazon’s dominance of ebooks

Amazon began as a bookshop, but just 30% of Q2 North American sales were physical media of any kind. The Fire is part of a broader strategy – to embed Amazon in online buying of everything from shoes to nappies to iPads and TVs. The Kindle Fire is a shop window on every coffee table

Media companies should not expect Amazon to be a more congenial partner than Apple. Amazon’s long-term stake in the health of the books or magazine industries is limited: the Kindle is a new way to reach readers and viewers, but not a saviour

Apple will release the iPhone 4S later this month, with substantially upgraded internals but the same design. Despite disappointment at the lack of something with a ‘5’ on the box, this is a solid update that maintains Apple’s competitive positioning

The most significant omission was a lower-priced iPhone. Apple sells the 3GS and now the 4 at lower prices, but lacks a dedicated device to address the sub $300 (SIM-free) market where most future growth will come from. We think this is only a matter of time

Apple’s new ‘Siri’ voice assistant looks very impressive as a USP. If it works, and spreads, it will join apps as a structural problem for Google, drawing people away from web search

In this report we outline the current state and likely development of the war between mobile platforms. We discuss installed bases and activity levels, the key issues facing Apple and Android, including Android fragmentation and Google's acquisition of Motorola, and go on to look at the tablet market and the outlook for RIM, Nokia and Windows Phone.