Are you a Windows user who is jealous of the Apogee Duet?  MOTU has you covered with their new Track 16 desktop studio interface:

Simple operation. Clean design. Studio-grade sound quality. Track16 exhibits these design principles through and through. 
And don’t let its compact size deceive you. There’s plenty of I/O available for a well-equipped personal studio, ready for 
multi-player recording sessions. Track16’s pristine mic preamps, balanced line-level audio connections, and renowned 
MOTU engineering deliver world-class audio quality.

Their website is quite extensive in the feature list.  So go check it out here.