Another cool small portable virtual synth system - 2 Korg MS-10s and a small drum machine
in a Nintendo DS. Odds are better that they won't hassle you about your Nintendo at the airport.
Wow, I want one of these. A little googling tells me this will be released this summer, will cost $50-60, but will not support midi. Pretty nifty though. Imagine giving a concert with a DS or two on the table, along with a mixer, and a laptop for FX and other sound sources.
$50-$60 dollars sounds amazingly cheap. If it sounds good it could be a real bargain