Far from a lemon IMHO
I read everything I could, thought about it for ages, checked one out and bought it. I have no particular devotion to Apple, use some of their gear but readily accept the flaws and the good points, just like anything else. IMHO Apple's response to the antenna issue has been arrogant and appalling, and has left them rightly open to a massive amount of criticism. When I bought the phone I knew all about the antenna issues, but had no idea, thanks to Apple's obfuscation and out-of-control rumours and speculation everywhere, whether it would be a big or a small problem.
I live in the Midland's countryside with weak 3g reception. I found immediately that bridging the gap between the two antennas caused a massive signal drop. If I moved my finger so much as a couple of millimetres away from the antenna gap, the signal was restored. This in my mind rules out general RF interference from the body as the problem- it really is an antenna bridging issue.
On the other hand, I've found it pretty easy not to hold the phone in a way that would bridge the two antennas (I wouldn't hold the phone that way anyway, other than browsing / text messaging). I've also ordered a case, which I would use in any event as the phone would almost certainly smash if dropped on a hard surface.
In every other respect, I've been utterly blown away by the phone - particularly good points for me are the speed and the display which are both amazing. The reception, when held 'normally' is pretty good. It's horses for courses really - if you're not prepared to be restricted in the way you hold the phone, or to get a case for it, I wouldn't bother buying one. For me, this isn't a problem, and in every other respect the phone is about as far from a lemon as you can get. It's a shame really, as Apple deserve a lot of credit for pushing the boundaries so far.
Please don't flame me! I have no axe to grind, I'm utterly unbiased and technologically literate - this is just my opinion and I'm hoping it might clear things up for anyone else considering buying one..