can be done easily with a keyboard and a mouse.
Hold down the CTRL key and tap the plus or minus key a few times to get to what you want (or hold the CTRL key and move the mouse wheel a notch or two if your mouse as a wheel).
Whatever you change it to will stay for all internet surfing from now on....and it works with all browsers and even a MAC system.
I'm too proud to admit it most of the time, but I have a hard time reading fine print with my 'over 50' eyes. I appreciate Firefox's ability to increase the size of screen text on the fly, but that won't cut it with that postage-stamp size screen on my cell phone.
I don't think I'd be able to comfortably surf the Web on a larger Treo/PDA screen, either. The FCC and the TV makers and broadcasters keep telling me I want widescreen, high-definition television. I remember always wanting the next-larger sized computer monitor. So why would I want miniscule, liliputian-resolution Web access from my cell phone?