We are looking for a Zigbee solution that runs at 920MHz (Japan variation).
It will just be an addition feature to our existing product.
Seems Freescale has solution for 2.4GHz with the KW20 series.
But I wonder if it works and if it is ready on the KW01 series too.
KW01 is already launched and can be used for 920MHz.
FSL does have MKW01x operable in 920MHz. FSL also supports 802.15.4e/g standard for this device. However, the ZigBee stack is not yet implemented on MKW01x.