Use Case: Share the iDevice screen with PC/Mac using USB cable. Then use webex or Microsoft Livemeeting to share your desktop and share the iDevice screen live over internet. Also have the ability to record the iDevice screen interaction in PC/Mac.
The free solution is iTools. Its absolutely free and provides lot of tools for iDevices. Download the zip file, unzip and double click the 6mb exe file. Do update when it prompts to update to latest version. I tested with iPod touch 5th Gen, iPhone 5 and it worked like a charm. Click on Desktop, then Live Desktop.
Download link: http://download.cnet.com/iTools/3000-2248_4-75629761.html?tag=mncol;1
Search iTools in http://download.cnet.com/
or from the hong kong site: http://itools.hk/multi_lang_pc_download.htm