Excellent memory accessory.
Im very pleased with my VMU. It has the standard 128 units and 8-bit black and white LCD screen perfect for playing mini-games from from titles like Power Stone and Sonic Adventure.

Yes it works...
...with US consoles as well. I'm glad I was able to get a controller for this low price. It is new in package, and it works with saving games. I already got Lost Hope saved, a game which I've ordered from this site as well.

Great buy
Great color, sure beats the dull gray one, with a little extra $$ this is worth buying

for one, a VMU is used to display information on compatble games on the screens, like Shenmue, sonic etc.

in the past you could download games on the dreamcast online onto the VMU

also, games like Sonic Adventure have something called Chao Garden, you can download chao onto the VMU and have a mini virtual pet =]

Memory card, and a bunch of other functions
No, this is not as useful as a swiss army knife, but this is one of the BEST and the most creative memory card ever invented for a game console.
Not just a way to store saved games and game data, but also for mini games. too bad not that many vmu games are created. but fortunately, you can find home-brew vmu games on the internet.

Wow
Still the most intuitive memory card out there. I was lucky enough to get a DreamCast recently with Shenmue and Sonic Adventure and while playing Shenmue I was delighted to find that the VMU displayed the keys I had to press to learn a new move. Truly great. =D