Flurry the mobile analytics company tracks the usage of mobile apps. They noticed 50 devices running iPhone OS 3.2 within the Apple Campus. Turns out they have been tracking these 50 devices since October of 2009 yet their usage has been ramped up in the last few weeks. Internal testing is of course increased with any product before it’s launch.

In the chart above you can see that the majority of the apps used on this new device were, games, entertainment and news & books.

This of course doesn’t necessarily mean that these 50 devices are Tablets. They could be iPhones. Rumor is that the next iPhone OS upgrade got pushed because of this Tablet.