Alpine has the PMD-B200 GPS unit coming out that snaps into a dash head unit (IVA-W205) to create an integrated audio, visual and GPS system. The PMD-B200 unit can also be snapped out to be used in another vehicle. Not a bad innovtion, as it takes a big negative out of the whole in-dash unit situation. Many people cite the lack of portability (and huge costs0 for not buying in-dash navigation systems. Portable GPS devices are expected to be 5-10 times more popular in the coming years than their in-dash counterparts. Maybe Apline has something here.