The only problem with this bad boy? It's still being tested and doesn't debut until early 2015. That said, you can pre-order yours here for around $30. Until it arrives, though, you'll have to resort to old-fashioned methods of scoring arm space -- namely, by offering your seat partner an Altoid and grabbing the armrest the moment they leave it unmanned.
Chloe Pantazi is an editorial assistant on Thrillist's travel team. Yes, that's a British accent. No, she doesn't watch Doctor Who. Follow her on Twitter at @ChloePantazi.