That's a lie, I called them earlier this week about it and I would think that most people in this forum have done the same.
I love how Apple keep their secrecy surrounding product launches etc etc.... And I'm sure these last 2 weeks haven't been the easiest for Apple as a whole, but just to let their users know if 5.0.1 is coming, when it's coming and if it will provide a fix for the battery issues would be nice.
In my own experience, the first few days were awful with the battery life, I restored from an iCloud back up to a brand spanking new 4s and was getting about 4 hours, I've done about 4/5 complete discharge and recharge and setup as a new iPhone today and manually restored all my apps, this took about 2 and a half hours.
The good news now is that after doing that last night I'm now on 29% battery life showing 11hours standby and 6hrs 40 mins usage, the usage has been some texting, a 33 min phone call, lots of instant messaging and Safari use mainly over WI-FI and to add to that I even popped out to the shops (about an hour journey all round) and set myself a GPS reminder whilst leaving both WI-FI and Cellular Data on the whole time, I listened to Spotify music the whole time I was out also and I've been tweeting all day.
It's getting better, but now wondering if I should restore the iPhone back to how it was before all that hassle to see if it's still going to suffer the same problems......