A Star Trek (TOS) Tricorder will be released in late June 2009 by Diamond Select Toys.
Given the technology changes since 1966, this tricorder would probably be easy to mod into the real thing.
Measuring 12 x 5 x 8 inches (30.5 x 12.7 x 20.3 cm), it could be a host for a hundred things, like a PSP, DS or even a case for my homeless Via pc2500.