Well, ur a bit late in posting, since I already bought the T610 about 10 days ago
Well, after using it for 10 days, I have absuloutely no regrets whatsoever(honestly,none at all)
The screen is great in normal light, bit difficult to read in sunlight, but dosen't bother me that much
The GUI is awesome
I've already said that I don't care about the camera, as I barely use it
And about the K500i, I rejected it because it dosen't have bluetooth, which is quite a big reason I bought the T610 over the K500i(Also, the K500i and the K700i look like **** compared to the T610. U may frown, but u all know its true)