Just upgraded from my barely capable macbook air to alienware alpha i5. Graphics are awesome, but I have a wired network extension to my pain cave. It turns out that while the macbook air is capable of hosting a wifi network, this is not supported by the wifi card in the alienware alpha. Which means no more mobile app functionality for me. Not a major issue, but pretty frustrating given the relationship between Alienware and Zwift and the reliance on the mobile app for practical in-game functionality.