Apparently other state of the art phones are also suffering from quality problems.

News Alert
Mobile-phone users swap M phone chips
The UK's only 3G mobile phone operator, 3, is blocking customers from taking advantage of its cheap tariffs without having to carry one of the telco's handsets around.
Users don't like the cumbersome handsets needed to make 3G calls, which also have a short battery life. Users have been drawn to 3 by its cheap calls, which 3 can offer because its high-capacity network is nearly empty.
But many internet sites are offering users the news that they can often take the SIM card - the microchip inside every European mobile phone - out of a 3 phone and fit it into a slim, 2G phone with much better battery life. And it often works.
It's bad news for 3, which is controlled by Hutchison Whampoa. Using a 2G phone the calls wouldn't be carried by 3's own network but would be carried by mmO2, a 2G operator that carries 3's calls in areas where 3G coverage isn't yet working.
That means 3 must pay mmO2 for every call its customers make that goes onto mmO2's network.
A 3 spokesman said it is monitoring users and if they were found to be using this technique, special software would be beamed onto their SIM card to prevent it working except in a 3 phone.
According to 3, the number of subscribers taking advantage of the loophole is very limited but the company was unable to quantify the figure..
A 3 spokesperson said that switching the SIM into a 2G handset isn't allowed under the terms and conditions of subscriber's contracts.
Internet message boards also report that about half of Nokia's models will work, although in some cases identical phones have different results.
Many have said they're doing it because 3's 3G phones have poor performance.
As well as having to pay mmO2 to carry the calls, another problem for 3 is that users who swap the SIM are showing they aren't interested in advanced features such as making video calls and watching news clips from their handset, which only work on a 3 phone.
3 is releasing new handsets in the next few months that may bring some users back onto its network.
But the fact that some didn't want to use video and other rich 3G content poses some larger questions for the industry.
"Hutchison is a measure of the market for 3G services like video calling and downloadable content going forward," said one analyst. "3 is a barometer for demand for these services."