The Viewsonic G10 is put against the Galaxy Tab! It's Tegra vs. Hummingbird:

http://www.anandtech.com/show/4054/f...ance-preview/1

The initial CPU tests shows that in some test it doubles the performance of the Hummingbird and similarly improves graphics rendering by 53%! But some tests indicate otherwise.

These tests also indicate that software optimization seems to play a major role in these scores. For example, the Nexus One, running a single core snapdragon performs quite admirably compared to the Tegra 2 and much better than the Hummingbird. In addition, the SGX540 decimates the Tegra2's ULP in the Neocore test.

While I don't doubt that Tegra 2 is a superior performer (in fact I fully expect it to be), these tests are a little too all over the table to be taken definitively.

That said, would I buy or wait until April for a Tegra 2 Tablet? No. As I've droned on about before, there are many metrics upon which to measure the 'quality' of a device, and computational throughput is just one of those measures. Even against the Tegra2, the Galaxy Tab performs well, and it has other very well balanced and appealing features that make it a valuable purchase for me.