For a .net developer, what\'s the learning curve to get into mobile development?
How many different operating systems are there that run .net?
Is windows mobile
I think the curve may depend a bit on what kind of .Net world you come from as well as what kind of mobile development you want to get into. For example, if you are a web developer and want to build a site using the Mobile controls within the compact .Net framework this may not be as difficult as say a web developer trying to write a stand alone application where there is a change in how things should flow. There is also the question of what do you want to call mobile development as there is the iPhone, Blackberries, Treo smartphones and a few other environments that may carry different capabilities to some extent.
Which .Net do you mean: There are different version numbers as well as the original and compact differences.
I think there was another answer addressing your last question well.