I follow on your tips but i have this problem.
how it looks like in c2<img src="https://dl.dropbox.com/u/44710358/ddd.jpg" border="0" />
and on my smartphone:
<img src="https://dl.dropbox.com/u/44710358/screenshot_2012-06-20_0206.png" border="0" />
<img src="https://dl.dropbox.com/u/44710358/screenshot_2012-06-20_0222.png" border="0" />
I try with Scale mode, letter box and letter box integer all looks + - similar to each other