I'm happy I bought a used nexus one instead this week. I'd only want this phone if they improved the camera optics and sold it with pentaband 3G. I'm in the niche "traveler without a point-and-shoot camera" market though.
Now, all is not equal.
If it makes sense for pretty much everyone to carry iphone sized phones for the screen, wouldn't it make sense that for some people a bigger screen would be worth it?
I had the Samsung Galaxy S from T-Mobile and it was -the- worst phone I've ever owned. Horrible interface, felt like plastic, and to top it off GPS did not work. When I say not work, it would hard lock the phone whenever you tried getting any sort of location and silent crash it. This isn't an isolated issue either, several people posted on forums describing the same issues. Just think if Apple released a product with a bad GPS...
It got so bad I contacted T-Mobile and after getting to a specialist they replaced my phone no questions asked with a G2 and I couldn't be happier.
This phone looks like it has the same horrible plastic back panel and likely the horrible product and support the Galaxy has.