Web Icon Set has released a set of Free Mobile Icon Set recently. Mobile Icon Set includes Phone Call, Photos, Messages, Calculator, Wireless, Calendar, Settings, Contacts, Notes, Map. You are welcome to use them on both your Personal and Commercial Projects. The sizes of the icons include 128, 64, 48, 32px. You can use these icons on your mobile applications or mobiles.

Requirements: -
Demo: http://www.webiconset.com/mobile-icon-set/
License: License Free