Startup Idea? Something I'd like to See: Cheap J2ME "device"
journal.dedasys.com
journal.dedasys.com
Your options increase and price goes down if you want to buy 20 or more phones of one kind.
My company buys these phones, loads a j2ME midlet that always runs in the background getting GPS locations, and sells the unit along with the service for businesses to track their vehicles.
Also a big +1 for the business idea. J2ME phones aren't the hot new thing, for sure, and can't do all the fancy things that a brand new top of the line phone can, but I think there is still a lot of use to be squeezed out of that kind of device.
J2ME has no future, so it'd be a poor startup idea. Trust me.
You might also want to check garage sales/eBay for old gameboys and games. They're more fun and more robust.
I don't think J2ME has much of a future for general use phones in rich countries, no. But it has a huge present, and a niche like this might be just fine for a startup, actually.
J2ME is not that bad to code in, actually, and is probably "good enough" for the sorts of simple kids games I had in mind. Android would certainly be a lot better, but I am not sure we'll see Android phones at anywhere near the right price point in the near future.