Windows could attack Symbian OS
"PC and PDA vendors could seriously swing the smartphone market in Microsoft's favour, according to wireless telecoms research and consulting firm, ARCchart. If the PC and PDA vendors do enter the market, ARCchart estimates that by 2008 it would cut the Symbian operating system's market share lead to just 8% points above the Windows Mobile for Smartphone (WMS) platform, giving Microsoft an overall 33% market share."