It seems that Toshiba is coming out with its own line of Portable USB 2.0 Hard Drives in the 2.5 inch size. This seems to be a rugged looking portable HD with a special shock mount system, and scratch resistant housing. The capacities they have in mind are 100GB ($130), 120GB ($150), 160GB ($180), and 200GB ($230). Portable HD prices have dropped over the past year and a half, previously my 160 GB Seagate was going for $300 when it first came out but now you can get the same capacity for the half the price which is great.
Link: Engadget