You're using N900, and you're wanting something more "mainstream" than N9?

If "apps" are all you're about, I don't know what you're still doing on real Linux device. Crapdroid market get 100+ "new", erhm, games (have problem to call this wave of, mostly, crap, as "games") every day, with similar number of other crapware "apps", (full of low-quality content, visual over-hype, form over usability, and adds. Tons of adds.). It should be your nirvana.
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Now, if you're asking - on maemo.org - about "better" options than N900, then there are none, N9 including. There (probably) *will* be a upgrade in form of Neo900, but count for 700 EUR rather, and for sure it won' be more "mainstream". Which I'm glad for

/Estel