Along with the 24.6MP Full Frame Sony Alpha A900, Sony have also announced two new consumer DSLRs using APS-C crop sensors, the 12.3MP Alpha A550 and the 14.2MP Alpha A500. Both cameras have a 3" tilt-view LCD but the A550 has a 921,000 dot high resolution screen, while the A500 has a normal resolution 230,000 dot display.
Both the Sony Alpha A500 and A550 can shoot at up to 5fps in continuous mode with focus and exposure being adjusted for each exposure. The A550 also has a hi-speed mode capable of of 7 frames/sec where AF and AE are fixed at the first frame. Both cameras have a built in HDR mode, in-body image stabilization, ISO settings up to 12,800, Live View and Face Detection but neither the A500 nor the A550 has a video recording mode. The A550 has a larger (about 2x) image buffer than the A500 (14 vs 6 frames in RAW, 116 vs 59 frames in JPEG). The A550 is expected to retail for around $950 while the A500 will be about $200 less expensive at around $750.
Here's the Sony Press Release: