The Galaxy Tab 2 7.0 has been praised for being an affordable tablet with mediocre specs. It was a great option for people wanting a moderately powerful tablet, but not wanting to dish out $400+ for a more powerful tablet. The Google branded Nexus 7 has been rumored for months, but now it is days from an official announcement at Google I/O. After it comes out, the Galaxy Tab 2 7.0 will not be a smart buy for most customers.
The Google-branded Nexus 7 is said to have a 1.3 GHz quad-core Tegra 3 processor, 1 GB of RAM, and 8 GB/16 GB storage options. The 7 inch screen will have a resolution of 1280 x 800. That is a great resolution for a 7 inch tablet. The 8 GB model comes in at $199, and the 16 GB at $249.
Perhaps the best feature that the Nexus 7 has over the Galaxy Tab 2 7.0 is software. The Nexus 7 will come with Android 4.1 Jellybean. The Galaxy Tab 2 7.0 will probably receive and update to Jelly Bean eventually, but Samsung is slow with updates. The Nexus 7, just like the other Nexuses, will receive software updates as they become available straight from Google. That means you will not have to wait months to a year for the latest and greatest version of Android.
TL;DR If you are thinking about buying the Galaxy Tab 2 7.0, then you should (probably) buy the Nexus 7 instead.