just answered a similar question in another thread.
For Compacts, i'll recommend the new Sony TX1 or WX1.
It has sweep panorama (the camera auto stitches a number of pictures to create a panorama shoot, so it saves u the trouble of going thru photoshop), Sony EXMOR R sensor (just FYI, ur D90 is using an older version of the EXMOR sensor. This R version is newest sensor by Sony), G lens etc...