So I have turned on Handoff and logged into my iCloud account for both my iPhone 6 and my 2013 MBPr running Yosemite Public Beta 3. It does not work at all when I open a website on either device. Now I noticed it worked between my iPhone 6 and iPhone 5 but not for my iPhone 6 and Mac. And my Mac does pick up phone calls. Everything is turned on and I am using latest Apple technology. This should work, right?