I also have it on good authority that Fry's just stocked them. Also cheaper than $199.

Seagate Momentus 2.5" 100GB HD (5400 rpm)
The drive model number is ST9100823A-RK
The part number is: 9W3277-556
UPC: 63649 00156
BestBuy stock#: 6884142

People are reporting they're still available at various BB stores around the US. Seems they usually only have 1-3 on the shelf at once.

Bruno