Got 1 about 3 months back for $399 @ AP. Might be cheaper now with the release of the 5mpx model. (I take it you're enquiring about to the 4mp model?) Anyway, in a nutshell, it's small and easy to carry around.
Start up time is decent, zoom is not that great @ 2x
Battery is proprietary as well so you'll need to get a spare at least.
Memory is troublesome cos of the XD format and my other stuff uses CF/SD.
As mentioned above, weatherproof + sturdy metal housing
You can also get a 3 meter casing for under a hundred.
Unlimited movie recording (well, up to memory card size) is nice too.
