Airbnb is taking its all-inclusive aspirations one step further. Now, the short-term rental service is close to buying mobile payment app Tilt for $10 to $20 million, according to The Information. For the uninitiated, Tilt's wrinkle is that it can process cross-currency payments -- which should help with Airbnb's international expansion plans. And as far as what users will notice, it sounds like people will be able to split the bill on a room rental in the future. If you're looking to outfit your rental pad with augmented reality area rugs, that's the other Tilt, Tilt Textiles.