One of the best things of using Nexus is that it gives you the most up-to-date Android release as it becomes available very quickly. The Nexus 7 was updated just a few months ago with Android 4.3 and it just finishes another upgrade(s) to 4.4 then 4.4.1 then 4.4.2. All delivered OTA and the N7 is rooted. Running Antutu Benchmark shows that it allows the system to run slightly faster than with 4.3. We should be aware that Antutu itself has been updated to run on newer Android system - we can only assume we can still compare the results with older releases. There are other discussion of what's new on 4.4. I am most concerned that Chrome is not shipped with Andorid 4.4 to carriers and end users would need to download it from Google Play themselves. This might not be a bad thing as explained here . That said, it is interesting to see which browser carriers would ship and the testing matrix for mobile web apps would still be complex.
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