When I bought some programs for my "old" 9210 from WildPalm a lot of months ago, they sent a little SIS file to me as a KEY to unlock the trial version. I didn´t like this system, because when I had to format my device, then the KEY didn´t work and I had to request from Wildpalm for a new KEY...
My question is if Wildpalm also uses this system of the SIS KEY to unlock the trial versions for the N7650.
Thanks!

Yes they do still use the system - I just registered Stack Up and Camera FX and they had to mail me the key files! :(