Maxmo I think you dont really read the news paper.
In yesterday's HEADLINES the Supreme Council for IT has confirmed that it is LEGAL, there are no problems. Only problems are ppl selling the cards, But for skype you can use CC to buy online.
And yes, I use skype and justvoip on my PDA using wifi.
Infact I have setup JustVoip in such a way that whenever there is a Wifi Connection my PDA automatically connects to it and any calls I make from my PDA will go through JustVoip and not Qtel.