Dan, I've seen the size of app data in Internal memory grow in size if I try manually moving them to sd with the built in Froyo option in a ROM which has A2SD+, meaning when I try A2SD in a ROM with A2SD+. Yes I know I shouldnt do that, and that A2SD+ is automatic, but do you know what's going on? When the script moves the data automatically to ext, apparently Froyo doesnt get that info, and it tries moving it too. In some cases, the size in Internal remains same, but in others, it increases. Why?
I dont subscribe to every thread I reply to, so post in relevant official threads for a speedy response. Alternately use the official Supernova forum