I loved my Archos Gmini 4xx - unfortunately an incident with a small drop crashed the harddrive one too many times.

Size comparison of Archos 5 vs. N810 vs. iPhone vs. iPod Touch vs. pack of cards:

http://www.sizeasy.com/page/size_com...-Playing-Cards

The inclusion of the media dock on the lower end Archos 5 is interesting (and very very cool)