I think the "elephant" in the room (regarding D2G on the NIT) is that there is and has always been a dearth of retail (ie: non-free) software on *every* open source platform. I have no reason to believe it is going to be different for the IT/Maemo.

I can make some guesses as to why this is the case: lack of market share, (minor?) differences in target devices/os, perceived lack of interest in paying by consumer, and/or stupidity of software makers. I'm sure this has been argued thousands of times before regarding platforms much larger than IT/Maemo.

I am hoping that the IT ecosystem moves more towards the way Palm OS and Win CE/Mobile are (non-open platforms), with a relatively thriving retail software industry, but definitely Nokia needs to sell lots of units.

sidenotes:
1. If the kinks in the new Palm-VM get worked out, and hopefully get more integrated into Maemo, things will be *very* good. There are lots of great/useful apps for that platform.
2. I would love to see Java, Symbian and .NET runtimes ported to the IT, either working with Maemo, or even as a replacement. All choice is good, and all of the above would open up lots of applications.