I got myself a Boom the other week and agree it is an excellent bit of kit. It is much smaller that you expect, but also much more solid and much better sounding.

I would second Bruno's comments about the iPhone/iPod Touch approach to remote control of Squeezeboxes rather than a Duet. I've had a Duet for six months or so now and if I was starting afresh I would have bought an iPod Touch and the excellent iPeng native app instead.

The Duet Controller still has the advantage of physical buttons for play, pause, volume etc But in just about all other areas an iPhone/Touch + iPeng has it beat.

(ok, so the Controller also has beta support for being a player and can be used on Squeeze Network, but both of those features are on their way in iPeng as well)