There was a discussion a while back about all of this. I'll use the example of Maemo mapper which was brought up a page back or so. But, Nokia has basically been so discreet with what will be included in Maemo 5 and the RX-51/RX-71 that some developers have stated that they don't want to waste their time coding for an alternative to a pre-installed software that may be already more up to date. So, for instance...why would the developer of Maemo Mapper spend their time working on porting that application if there is already going to be a equal or possibly more featureful mapping software included that they could instead contribute to?