Can I use .Net v4.0?

[mzimmer74]

I've decided to try my hand in some simple programming for my windows mobile 6.5 phone since I got a copy of Visual Studio 2010. However, that program compiles in .net 4.0 instead of 3.5 which is what my phone has. I've done some google searches but haven't found a .net 4.0 installer for the ppc, only for windows. Does anybody know if there is a .net 4.0 version for the ppc yet and if so where I could get it from? Another option would be to compile in 3.5 but I haven't researched that yet and don't even know if it is possible so advice there would be appreciated as well. Thanks.