Here's some information about Lenovo's ThinkVision C400 Wireless projector which will be available within 2 to 4 weeks for $2,499. This 3.4kg (7.5lb) projector measures only 115 x 290 x 225 mm (H x W x D)( 4.5 x 11.4 x 8.8 in) and features 802.11b/g Wi-Fi technology for wireless connectivity.
802.11b/g wireless: The included, internal wireless card lets you connect and present wirelessly from your ThinkPad to the projector.
Native resolution: XGA (1024 x 768)
Resolution compatibility: SVGA, XGA, SXGA
DLP technology by Texas Instruments: 0.7-in XGA
Contrast ratio: Up to 1200:1 (Full on/Full off)
Lumens: 2,650 lumens (Economy mode 1,850 lumens)
Lamp life: 1,500 hours (Economy mode 3,000 hours)
Aspect ratio: 4:3 and 16:9
Brightness uniformity: 80%
USB input: Use a USB memory key to display image files on your projector without connecting to a PC.
Auto shutdown: If no video signal is detected after several minutes, power shuts down to conserve lamp life.
Keystone correction: Digital +/- 15 degrees vertical
Audio: 3-watt mono speaker
Acoustic level: 35dB (Economy mode 34dB)
Remote control: Integrated laser pointer and mouse control
Video connection: 802.11b/g wireless, DVI-I to VGA connector, S-video, composite video