Agree, it would be pointless if the flash had worked. Raiffeisen Bank I use provides on-line services either via browser with flash or Adobe Air app. Flash does not work on N900, you can try to get login page here: https://www.r-bank.pl/newsbi/index.jsp?lang=en
and Adobe Air is non-existent... Yes, could throw away N900 and get iPhone, but I still unreasonably like Maemo..