Don't give up on the 3ds just yet. If it ends up being even half of what the original ds was then you will more than get your money's worth from it. I had that same feeling after buying the ds right after it first came out, especially after reading all the negative reviews and about how much better the psp was goingto be. But in the end I have played the ds more in the last 5 years than the xbox, xbox 360 and psp combined!

For the 3ds: I really like Pilot wings, fun, easy going game perfect for short bursts of handheld gaming, it also shows off the 3d effect very nicely.

If you want to bide your time with ds games then you should look into:

Platformer: New Super Mario Bros. there is a reason this game has sold like 10 million copies. It is that good.

RPGs: Either of the Mario and Luigi games are great but especially Bowser's inside story. That game has a very funny story and all the right elements of a great rpg. You can't go wrong with that one.

Other: At the risk of sounding like a nintendo ubernerd I want to recommend The legend of Zelda: Phantom Hourglass and Spirit Tracks. These games look incredible for being on a hand held and the gameplay is a classic.

Hope this helps.