Yesterday Adobe released Lightroom 2.1 (Mac, Win) and are available on Adobe.com. Beyond several bug fixes there is also support for several new cameras:
Canon EOS 1000D (Digital Rebel XS/EOS Kiss F)
Canon EOS 50D
Fuji FinePix IS Pro
Kodak EasyShare Z1015 IS
Leaf AFi II 6
Leaf AFi II 7
Leaf Aptus II 6
Leaf Aptus II 7
Nikon D700
Nikon D90
Nikon Coolpix P6000
Olympus SP-565 UZ
Pentax K2000 (K-m)
Sigma DP1
Sony A900
You can get more details at the Lightroom Journal Blog.