Skype announced a beta version of its client for Java-enabled mobile phones with the current list of compatible devices from Motorola, Nokia, and Samsung. The intent of this new mobile client is to expand Skype to the mass market feature phone.
While Skype is a VoIP solution that is extremely popular around the world, this current beta mobile implementation actually uses standard calls over carrier networks to make the actual call from your mobile phone. Most feature phones/mass market phones do not support WiFi or 3G networks in the U.S. so this is probably the best way to currently get the calls initiated. There are a few select countries where you can actually make calls via the Skype network directly in this current beta too, including Brazil (Rio de Janeiro), Denmark, Estonia, Finland, Poland, Sweden, and the United Kingdom. The call is then routed through Skype’s network to the person you are calling and the only charges that will apply are your carrier minutes. When you initiate a call a pop-up appears to ask if you want to make the local call and my phones kept calling an 813 area code number. It still does use WiFi or 3G networks to maintain your presence and carry out chats so it is a rather seamless experience on your device.