I picked up a HP "expandable" iPaq case last night at Fry's for $9.99. Here's a link (mine says "hp" instead of compaq): http://www.amazon.com/iPAQ-FA117A-AC.../dp/B0000CDERS

It fits nicely and feels very durable. Still small enough to fit in a large-ish shirt pocket, and includes a velcro belt loop. Not quite as sleek as the 770 with cover, but it definitely protects the screen. There's enough room to fit some other stuff in there too as the n800 isn't as thick as the case; there's a good 1/4 inch of space when not compressed. When closed it's 5.8 x 3.6 x 1.1 inches.

Larry