I just began checking out the Windows beta and it is love at first sight. I'm ridiculously excited that this amazing piece of software is available for Windows as well.
The first thing I tried was opening various big files, to see how the program handles them. The loading times are great, but, while the file is loading, there is no visual feedback on the process. Also, during that time, the menus are still operational; the program doesn't hang, which, per se, is an amazing thing. The problem is that, with the lack of any kind of progress bar on the file opening process, this may actually give the impression to the user that the command to open the file didn't even go through.
I realize that this is something that mainly affects people with older computers, dealing with huge files, but I'm sure I am not alone. There are a few topics asking the same or something similar in the "features request" subforum, but I wanted to let the developers know that this is definitely something important on Windows as well.
Keep up the amazing work!