I know I need to just be patient and wait for Apps users to get Profiles/Plus, but I don't find it particularly sympathetic of Google when they keep saying that "everyone" can use Google+ now, even in their financial results announcements. From the CEO.
(Yes, technically anyone can use it by signing up with a free @gmail.com account, but I consider that a cop out.)
You don't need to use a gmail account. You just need to create a Google login that isn't an Apps login. You can use the same domain as your apps account - I use that, just with a slightly different username for Google+
While this is true, it's in the same class of work-around as just registering a @gmail.com account. It doesn't let an Apps user use their Apps account in a unified way, which is what I was getting at.
(Yes, technically anyone can use it by signing up with a free @gmail.com account, but I consider that a cop out.)