If you have ever used cynogenmode nightlies,then you know how difficult it is to stay upto date with the latest updates.........you need to download a new nightly every day to stay updated.
Well a 500KB app called cyandelta is the solution.CyanDelta lets you update your CyanogenMod ROM by downloading just a small delta file (about 10 MB) instead of a big full zip file each time. With CyanDelta you can finally update your ROM in just some minutes even with a slow and expensive 2G or 3G connection!
Its a lot better than CM updator or rom manager for updating CM nightlies.
You can download the app from playstore by following this link.