Text in iSight is mirrored

No worries.

In Photo Booth, select Edit->Auto Flip New Photos.

For previous photos, choose Edit->Flip Photo.

 

Oh, and this is considered normal because they figure you'll use it to take pictures of yourself, and if it WASN'T mirrored, you'd get confused, since most people are used to looking at themselves in a mirror, and would feel odd if their image moved right when they moved left. It also auto-mirrors your preview in iChat. But if you record a movie with it, (with iMovie or QT Pro, for example,) it will be oriented properly. (a.k.a. not mirrored.)