Perhaps, I guess it's hard to be that certain about whether or not it's going to be unusable before it's available.

I have no experience with Altium at all, I found this via Twitter and through the EEVblog where it's been mentioned since the guy running the blog seems to have hope/interest in it.

For me it'll probably not be very interesting, since I totally expect it to be Windows only. What do folks with experience with Altium's products think?