Just off the top of my head, things that are relevant to me right now:
iMac Mini: Interesting idea, but isn't this pretty much a 12" iBook without a screen or keyboard? Can't upgrade memory without going to an authorized service provider. Probably a good choice for someone who's already got a computer and wants to move to Apple. Would make a good fileserver/backup with an external FireWire drive plugged in and an AirPort card installed.
iPod Shuffle: Bold (maybe risky) idea? No screen kills it for me, but I'm hardly the target market. At $99, it could be seen as an impulse buy, say for commuting or working out. Liked this bit on the main page: iPod Shuffle: Smaller than a pack of gum and much more fun. (footnote: Do not eat iPod shuffle.)
