how much heap and stack memory do you get on a midlet running on an average cell phone?

They vary so much, it''s best to specifiy what phones you want to support and then see what you''ve got from the phone specs. There is only heap space, the stack uses it too. It can range from ~100K to Mb''s. 100K sounds a lot, but you''ve got to put your classes into that as well as your data.

Skizz