I'd like to participate in the alpha and/or beta.

Regular PC:
Windows 10
Chrome/Firefox/IE
AMD Radeon R9 200 Series
Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz
GDDR5

Laptop
2010 Macbook Air
Safari/Chrome/Firefox

Nexus 5 phone
chrome/firefox

Ipad Air
Chrome/Firefox/Safari

Being a webdev I use chrome/firefox/ie on a daily basis a minimum of 8-10 hours a day.