For those looking for answers to the OP's posting, Krisse and Andrew got it right. Running Opera Mini is pretty much out of the question for now, even for really dedicated hackers (which isn't the same as 100% impossible, but if I could ever get my 4 weeks of holidays.. now that's a dream - I would spend the time on some other, more rewarding project.)

Let's get back to this when there's finally a fully compliant working Java implementation for OS200x, which, if we're lucky, isn't totally far off.