Among things that are cool is an iPad app called Auria which allows for recording multitrack. You need a USB interface for it. Something like a Scarlett if you want to do at least 8 tracks. If you've got an iPad, an interface (and the camera connection kit for the iPad which is like $35 from Apple or vastly less from elsewhere) then it's a pretty cool and lightweight way to do recordings.
What else is cool? Mother Leopard is cool. Jeremy Crowson turned me on to them.