It seems to me that someone has already packaged real gnu grep. Unfortunately, it conflicts with busybox. Now, busybox is really small. That's good. But it gives you degraded versions of sh, grep, find, xargs, etc., and it's my main complaint with the set.

For example, 'find' doesn't have the '-print0' option, and 'xargs' doesn't have the '-0' option. That means if you have any files with spaces in them, you can't use these to, for example, make sure your files are readable. And files with spaces in them is increasingly common. For example, download a web page for offline reading. If there are spaces in the names, then the directory for images has spaces too, and the links have spaces in them, so you can't easily just rename them.

At the moment, i'm too chicken to de-install busybox to install the real utilities. I mean, my n800 is currently working...