The problem is that the UK CAA VFR charts have not appeared in QCT format for a couple of years.
There is an all-UK 1:500k QCT map going around on P2P, apparently done by scanning, but it is 2010.
The only 2011 ones I have seen around are in Oziexplorer format only. They are not great quality scans but look OK and the accuracy is pretty good (1/4 mile or so). There is a beta version of Ozi for Android,
AFAIK.
I have a TomTom for my car but apparently you can't download the CAA charts into it.
TT is completely inapplicable to aviation. One navigates completely differently when flying.