Sony has recently removed the $99 price for developing games for the PlayStation®Mobile platform. This means that anybody that would like to make a game for the PlayStation®Mobile platform, you are free to do so and profit as well.
Although the SDK currently supports C# and soon Unity, I wouldn't doubt Java is on its way as well.
What this means is that apart from android based phones, the PS Vita will also get in on the action. I'm sure I'm not the only one who has tried replicating the MineCraft experience on our HBL/CFW PSPs but found it to be really lacking compared to the actual experience.
Ok, I guess this thread is mostly wishful thinking on my part, wouldn't it be a good idea to port MineCraft to PSM if Java ever became a supported language?