Disappointing that it hasn't launched with linux support per the original RAD debugger announcement, but to my understanding the project has been restarted several times since then.

It's still in alpha so not that big a deal. Vast majority of users will be on Windows, so perfect for identifying bugs quickly, and then Linux should hopefully get a stable port soon. Personally code primarily on Windows but a good GUI debugger would make me very seriously consider Linux as an option to get finally get away from Microsoft