Thanks Biggerdave, FastActivate Premium worked great (except for one detail - see below). For anyone new to hacking their tomtom please note that you're not alone: finding info on which tool to use is hard and confusing at best. I made the mistake to try the wrong tool first but as it turns out, this AFastActivate is super easy.
Still wish there was a Mac option but so far haven't found one.
Biggerdave, any idea why FAstActivate fails to patch my tomtom Home app? When I try it says it can't locate the dll.