Sounds interesting, however what makes HS different from most other "list" type applications is that it's geared towards actual shopping, but isn't limited to only that. Also there's a lot of user made lists already ranging from a-z and I would like to keep my existing lists and maybe share them with my still working Palm from time to time.

I don't have N900 (yet) so I haven't actually used any of the Maemo apps but I'm willing to give at least feedback after I do.