Apple is just targeting Motorola and Samsung right now, but is looking for a little more than Microsoft, asking for between 5 and 15 dollars per handset sold. The licensing deal was presented to Motorola and Samsung by Apple as a settlement to the current lawsuits seeking injunctions. The figure of $5-15 represents between 1%-2.5% of net sales per device.
Motorola had offered Apple a similar licensing deal, asking for 2.5% of net sales per iOS device for the wireless patents that had led to an injunction against iCloud in Germany. Samsung is also locked in litigation with Apple. Who knows, maybe this will be a turning point away from wasteful patent litigation and towards licensing deals which will end up with everyone paying everyone else. That's progress, right?