I have gotten a tablet and I want to play games on it. Virtual gamepad with touch screen is bad and my device is not small enough to be attachable to an Ipega controller. For that reason, I can only play visual novel, some puzzles and turn-based RPG, because they do not require fast action.
DS would be the best option, because it has games that use touch commands and it would be easy to play on tablet. However, the emulator is terribly slow. =( I cannot play Phoenix Wright and Ghost Trick because the text appears slowly and the sound is bad because of the slowness. It is strange, because PSP is much more powerful than DS, but the PSP emulator is much faster. My device cannot play Phoenix Wright, but it can play Trails in the Sky at speeds higher than 100%.
Could the DS core be optimized to play 2D games and visual novel? A subset of playable games is better than nothing. =D