Yeah, I know what you mean. I have 400+ plus files on my sd card. I haven't plugged it into my computer in a while, so I'm not sure how many. But, I can't search through and the trackball isn't exactly great at scrolling like that. I'd love, as a stopgap measure, to use the volume button as a page up and down button, like I use in Dolphin.

But we really, really need some good search tools. Way more than file type, too. Most of my files are pdf, so filtering a few mp3s really doesn't do much.