Surprisingly, the Community Edition of Delphi is not crippled at all, I think it corresponds to the Professional Edition, worth of about 1000 $, and even comes with the sources. It is allowed for private projects, even for commercial projects, however, only if your company has total revenues of 5000 $ per year. You may wonder, what's wrong with it...
Well, I think, it's the same trick that drug dealers use to make people addicted. The problem is that you only get a 1-year-license. So far, it has not been any problem for me to extend it. But I think that Embarcadero once will decide: Let's stop this offer, we want people to pay for it. And then you have a problem because you cannot use your projects any more when your license expires.
Therefore, don't do any serious work with the Community Edition. For learning - fine. But even a hobby project is at risk...
For "serious" projects use Lazarus, or *buy* Delphi.