I really love this post over at Tech Dirt. It illustrates the fallacies that most people have about implementing Wireless VOIP. The VOIP guys think all they have to do is plop down an AP and shebang! VoWiFI. http://news.techdirt.com/news/wireless/article/6905
I especially love this sentence, "When we begun developing the mobile phone version we didn't realize the number of technical obstacles. It is challenging and is taking much longer than expected"