Challenges with the diversity of the Android Market

For those of you interested in hitting the Android market, Gamasutra has an interesting article about the Android market.  I have to be honest, the idea of publishing to the Android is a bit intimidating, but only because there are so many different form factors to test.  The same goes for Blackberry, but to a lesser degree.  The nice thing about ShiVa is that everything scales to whatever resolution you are running in.  Of course you still need to check that things aren't too small, etc, but at least from what I have seen so far it works pretty well.  I'm hoping that the same can be said for Corona since that will be my next project.

In-game Achievements Analyzed

There's a good article on Gamasutra about how to use in-game achievements and their impact on the players.  Achievements are definitely something that I would like to eventually put into my games because there are plenty of cases in which I am going back and trying to find all of the achievements within a game even after I have "finished" a game.  Personally, I hate when there are achievements that can only be earned once so that you can't go back later.  Most of the time I am playing a game I am not focusing on the achievements until I finish the game and it sucks to find out you can't go back to that achievement unless you start the whole game over again.  I would be interested to hear about your ideas of successful achievements.