Objectionable content

So I have been running the iPhone 3.0 software for something like a
week - via my ADC GM Release. Overall I like it, MMS just started
working correctly on O2 today etc.

Also as 3.0 hit the wires for everyone all the 3.0 updated apps kicked
in. I doanloaded the 3 updates I was offered and also received this
warning.

I was downloading updates for;
Shazam
The Benjamin Button eBook and
Twitterific

I can only assume the objectionable content could be via Shazam or BB,
but since iTunes didn't tell me I'm left to wonder!