Yes this device runs on WM5 for more information avout it:<br /><br />Operating system : Microsoft Windows Mobile 5.0 Pocket PC Phone Edition<br />CPU : CPU Freescale i.MX21 350 MHz<br />Memory: Internal Memory 128MB Flash Rom and 64MB SDRAM Expansion <br />Display : 262,144 colors 2.8" (240x320 Pixels) LTPS TFT LCD <br />Connectivity : WLAN 802.11b, Bluetooth v1.2, IrDA, USB <br />Dimensions(LxWxH) :109Lx55(W)x21.5(H)mm <br />Weight : n140g(with battery) <br />Frequency : GSM 850/1800/1900MHz, GPRS <br />Camera : 2.0 Mega pixels <br />Expansion : miniSD Card <br /><br />for more inforation you can visit this link:<br />http://www.ido-me.com/idotin.asp<br /><br />Is the softwae of device info working well?<br />this this the first time i know that my Pocket PC<br />is useing a SIEMENS hardware inside it because<br />my Pocket PC is not a SIEMENS Pocket PC!!!<br />