Sony Ericsson phones work well with the software. Steer clear of heavily branded phones (by network) ie Nokias on 3. (3 disable all sorts of SIM access which wastes most of the functionality with the MMI)

2007 Q7 SE 3.0 TDI (Air, Xenons, Tech Pack, Dension Gateway 500, Off Road front and rear)
2006 A6 Avant 3.0 TDi Tip S- Line SOLD
2003 A6 Avant 1.9 TDi SOLD
2002 Allroad 2.5 tdi Tiptronic SOLD
1997 A8 4.2 Quattro SOLD
1999 S4 SOLD
1997 A4 1.8T Sport SOLD