Interesting to note that while the mobile world is focusing on dual-mode WiFi/cellular devices, some of the pioneers of VoIP are already moving onto VoIPo3G.
Last week's announcement of the Hutchison / Skype tie-up was the most obvious manifestation, along with Skype's earlier (laptop-centric) deal with E-Plus in Germany. But it was Skype's other press release which contained an interesting line
"Skype for Pocket PC 2.0 works .... with an internal Wi-Fi or 3G (EDGE, EV-DO or UMTS) radio. "
I'd heard at a conference last November that Skype was working on an EDGE variant, so it's interesting to see it launched so soon. A Symbian client is also nearing release by the looks of things .
All well and good... but these are (for the most part) relatively niche devices. It will be interesting to see if Skype tries to exploit a variant of handset-specific J2ME Java that'll be appearing on mid-tier phones later this year. (it's called JSR-180 for those who care....) This gives access from the Java environment to a SIP stack on the phone, if it's present.
There's an awful lot of Java/EDGE phones around... although whether they'll have the necessary horsepower to run the Skype client is another matter. (as is the per-MB data rates that operators charge)