Xbox Live Arcade's worldwide games portfolio planner David Edery has doled out some tips on his blog to help developers make more successful demo versions of their games - something that even the best XBLA titles sometimes foul up.
From his blog on January 15, 2007:
"I've debated writing this article for a long time. My hesitation has stemmed, in part, from the recognition that many people have already beaten this particular horse. At least once a year, I hear an excellent presentation on this subject, usually at a casual games conference (where necessity breeds ingenuity). That said, I believe that many developers and publishers are making mistakes - on many platforms, not just XBLA - which if corrected could improve the sales of their games. So what the heck, I'll jump on the bandwagon and say a few things. Hopefully some of them will actually seem insightful."