Just like I was saying, it appears there's a conspiracy preventing you from using your mobile device to carry VOIP traffic.
Skype has just announced their mobile application, and guess what, unlike regular Skype, you can not make VOIP calls on it.
Skype-to-anything-else rates are not that great. The only reason to use Skype (for me) is to utilize free VOIP. The Skype Mobile App is not providing that ability.
Moreover, not only they don't have VOIP, they both a) consume airtime minutes *and* b) charge you the Skype call rates.
Thanks, but no thanks.
Seems that we're screwed. The only way VOIP on mobile is happening is Open Source, and even then buckle up for mobile traffic capping.