If $ would be a surefire way of securing quality, I'd concur. But it doesn't. Take a look at the most common commercial NIT apps.

Wayfinder. Outrageous price, eclipsed only by the outdatedness, low quality (or general lack) of maps for even EU countries.

Skype (yes, it's a commercial app even if you don't pay in all usage scenarios). Where do I start ? Video, file transfer... Too 'extra' ? How about something *simple*, like a working DTMF panel for voicemail/call centers or being able to (gasp) receive a message while I'm talking ? No sir, too complex to do right even though I'm a paying customer.

If THESE are the $ apps I'm comparing to, I'll take the 4 unfinished OSS maemo apps anyday. And you DO have finished maemo apps.