So with the HP Mini 1000, it's a bit of a challenge to get a 6-cell into a slot and still sit flush with the bottom of the netbook.

It looks like HP has gone with a slight wedge shape and and sits pretty stable according to the reviewer.

My opinion? The battery spoils the whole look of the Mini. At US$103 a piece, it's not a cheap accessory and adds a half-pound to the system. The usage hours doesn't seem any better than other 6-cell models.