One site reports that, "...UMPCs and MIDs will come from Asus, Aigo, Asus, Fujitsu, Haier, HTC and Samsung". Looks like Sharp has not decided to officially get in the game. However, the EM-ONE (S01SH) from Sharp is only a half step away from being a MID. I don't think they would have to change much, upgrade the processor to the new Intel MID processor. The rest of the specs fall right in line with what they are classifying as a MID:
Sharp EM-ONE (S01SH)
32bit Intel XScale PXA270 CPU @ 520MHz
512MB ROM / 128MB RAM
4.1" color transflective TFT display, 65536 scales, 800x400pixel
UMTS, HSDPA, WLAN, Bluetooth
Slide-out QWERTY-type keyboard
1.3 megapixel main camera
70x140x18.9mm, 250g
[ Invalid Attachment ]
The more I see this device, the more I like it. I'd love to see that Red Flag Midinux running on this....nice.