At this time point the answer is No. Apple has linked Yosemite directly to the system ID string so these features are limited to certain models not the given Bluetooth hardware it could have been upgraded or added (this could change). Review the following [http://www.macrumors.com/2014/06/18/bluetooth-le-adapters-handoff-no/|Bluetooth LE Adapters Don't Enable OS X Yosemite's 'Handoff' on Older Macs].