Mobile Phone As a SIP Softphone--Does Anyone Even Use It?

Counterpath has released an "enterprise grade" SIP softphone for both iPhone and Android. 3CX has released a free SIP softphone for Android and now also for iPhone. The latest version of Android 2.3 apparently now has a SIP softphone (and videophone?) built into Android. (possibly making all the other products moot?) And Windows Phone 7 has a pretty nice Google Voice client and now there are even rumors that a coming update will add Voip calling to Windows Phone 7!

With all this buzz the big question is: Do people actually use their phones as a VOIP client? I decided to find out and did a survey of the geekiest of geeks and this is my finding: 23% of PBX admins actually use a SIP client day to day! Roughly (note that blogger.com's survey doesn't calculate accurately ;-) 75% either never use it or did it in a testing environment!

Soo maybe we don't even need a voip client for mobile devices...