Windows Live Mail is in Beta satge. This is provided to current hotmail users, from microsoft. The service is average. Here I am just discussing some of its features.
The good things about it -More storage. (2 GB) -Outlook design, looks almost like outlook. -Allows drag and drop, select using mouse like in windows explorer, right click menu operations etc. -Previews of your messages, you can read without leaving your inbox. -Same old, hotmail Id. You need not change ur id.
The bad things -Slow (They say it is faster. But not true.) -Not supported in many places ( I couldnt open it in many places. ). Cant work with out IE 6.0 or more. -Only for citizens of selected countries.
Conclusion This service is good yet not too good. Using it easy and it is bery effective, were it is supported properly. If you can access this service then go for it. It is very good then.
Only thing is that it is not supported in some places even with IE 6 or newer version. Hope this will be sorted out by Microsoft before it comes out with the final product.