Hi all, I know that forums tend to have more info about issues with things because, well, people tend to come here for help with things vs. to rave about a product. I've gone back and forth on whether to upgrade to Lion. I'd appreciate some input. First, I have no problems with Snow Leopard but am a little intrigued by Lion. I am using a 2011 MBP, 2.3Ghz i5, 4gb RAM (base model 13"), in case that makes a difference with my questions below. I don't use Spaces or Expose (I actually can't even remember what Expose is, and I don't even know how to activate Spaces at the moment, since I have never felt compelled to use it...I know, bad OS X user), so I am not too concerned about the complaints people have made about Spaces being better executed than what is offered in Lion. My main concerns are Mail and iCal, because I use these very, very frequently. Will I need to re-set up Exchange with Mail? I use Exchange for OTA sync between my iPhone and computer for my email, calendar and contacts. The new mail interface (and possibly calendar if IIRC) were what initially intrigued me about Lion, so I'm a little nervous about this. Someone said something about not being able to close a new message window easily?! This sounds odd... lol. I also frequently use Preview (sometimes to crop images), iTunes, and I use MS Office for Mac a lot (mainly just Word). I'm not sure if there are any known issues/bugs with these? Do I need to be concerned about particular non-native apps not working with Lion? I use Split and Concave to join files and Planbook as a computer-based daybook for work. Is the dock still available in full-screen mode for apps? When I scroll to the bottom will I see the dock? Can I disable full-screen if I don't like it? I realize there are a multitude of threads on OS X Lion and I have sifted through some of them but they didn't necessarily address these particular concerns. Thank you in advance.