WPtouch completely disabled my site! Here's what happened:
Everything worked until I uploaded a custom icon. At that point, apparently WPtouch renamed my themes dir to "wp-content," so wp couldn't find my theme, or ANY theme, for that matter. When my site loaded on a computer browser, it was just a blank screen.
It took ages for me to figure out what had happened, but thankfully all I had to do was rename the extra wp-content back to themes (and I had to re-place all my widgets).
I've reinstalled WPtouch and manually created the custom-icons directory and all seems well now. But, seriously, really uncool that it managed to rename my themes and completely disable my site! lol you guys may want to look into that.
It looks great on my iPhone, though. :)