No, not really. I brought my gp2x to work the first day I had it to show off, but haven't brought it with since. I am waiting for sound or to rip some movies before I have any use for it.
Meanwhile, my laptop (Averatec 4155 - has been upgraded to a MT-40 (2.2ghz 64bit), 2 gig ram, 100 gig 7200...