For those who talk a lot over Skype with an iPhone will like this. Its new Skype 2.0 now allows free voice calls over 3G network as opposed previously only available if used over WiFi.
The first version of Skype for iPhone only allowed voice call over WiFi as most telcos are concerned about VOIP usage eating up into their voice calls revenue.
This is certainly a welcomed feature but unfortunately this is a time limited until August where Skype may introduce subscription model for iPhone users
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