Mavis2

Hello, I am looking at the Image S4A(II). Is there an update regarding fixing the compatibility of these with the Motorola Razr running ICS? It would be great to have headphone/phone button functionality. Second question. Would the button on the Image 'A' version have functionality with an iPod Nano(6th Gen), track forward, volume up/down? This would be my primary use for these headphones, so should I just get the 'i' version? Much thanks!