Flotato is described as 'Turn any web page into a Mac app'. There are four alternatives to Flotato for Mac, Windows and Linux. The best alternative is Fluid, which is free. Other great apps like Flotato are Web2Desk (Free), WebShell (Free, Open Source) and Web2App (Paid).
Are you a Gmail, Facebook, Basecamp or Pandora fanatic? Do you have 20 or more browser tabs open at all times? Are you tired of some random site or ad crashing your browser and causing you to lose data in other tabs?