Picross Ds is said to have downloadable puzzles from previous games in the series. It looks great, but NCS has been out of stock for a while. Maybe Monday or Tuesday. These type of games are really suited to the DS. Unfortunately I only have Oekaki Puzzle Battle: Yuusha-Oh Gaogaigar Version
thus far. I haven't yet picked up the other DS releases. Do you recommend any of the one's you've picked up le geek? Any other info on them beyond your initial impressions in the other thread?

I posted a couple videos of NuPa over at Youtube and plan to post some of Logic Puzzle Rainbow Town in the near future. You can get to them via the link in my sig. The cool thing about Rainbow town is that the puzzles can contain multiple colors. If you have a way of playing import Saturn games I'd highly recommend it.