I've tried a few different roms for my Fire. All of them are super laggy. And so far, I've not found one that's truly for a tablet. They've all had the extra phone stuff installed as well. So for now, I've reverted to the stock rom and have just been using it to read. Mind you, I'd prefer it to be a real tablet and not something so restricted. I can't watch videos of any kind other than 3gp format.