"Several exporters, e.g. for mobile or desktop publishing, are unavailable"
Having looked at the list of stuff missing from the licensed version (I didn't use the free version for very long) I think it would drive me nuts. C2 is dirt cheap for what it does. (GameMaker for example, if you want to export to anything other than Windows is $550 and that's a special offer, GameSalad is $200 a year).
Some of those that claim to be 'free' aren't actually free. The business thing is also very generous, AFAICS they are identical except if you make more than $5k you have to spend another £180 or so. Which isn't a bad exchange
Seriously, I would give thought to buying if only for families and effects and stuff.