toyed with idea, though still reasonably happy with standard after market ice
single din.
second half of double din has cb, guess main use of typical 7" screen gained
with a double din is for sat nav.
noted some of non branded ones on ebay say run a version of windows mobile
and as well as a generic sat nav software supplied say they can run tom tom.
now if could run memoey map, wld be onto something...