Best Google Docs app for iphone

I’ve been trying to find a good app for using Google Docs on iphone/ipod touch. I know you can use Safari to edit them, but I discovered that you can’t format the text on it. That’s pretty essential for what I need Google Docs for, so the Safari route is basically useless to me.

So the question is, does anyone know of any Google Docs apps that will let you format the text (color, most importantly)? Documents To Go Premium sounds like it might do the job, but I was hoping for something a little less than $17…and I’m not 100% sure it’ll really do what I need anyway.

A search for Google Docs on the app store didn’t yield very promising results. The descriptions on the paid ones didn’t have any useful information, and none of the freebies or lite versions could do what I need.