A couple others I thought of:
- Jake Hunter: Detective Chronicles is also out. I meant to pick it up, although reviews have been decidedly pretty bad. For $20 it might be worth a go.
- Also I am planning to pick up Time Hollow around Christmas, another point and click. It's out now though.
- The Strongbad games on WiiWare are also point and click but I've not personally played.
- Touch Detective and Touch Detective 2 1/2. I grabbed 2/12 for $10 brand new but haven't spent a lot of time with it.
Prior to the DS I never played any games like these, but they are truly among my favorites at this point. I was probably the only one excited when on the Japanese Nintendo Conference, they announced a sequel to Trace Memory (by Cing, who is responsible for the first game and Hotel Dusk- amazing developers!)