Do you want to be on the bleeding edge and use NetBeans nightly builds?
Then you might have noticed that the last version is still of July, 9th. There is a technical problem uploading the bits to the usual location. But, nightly builds are still available.
Try to get it directly from the Hudson server . Just one little drawback: Only the zip version is available, not the installer. But, it should be no problem to use this distribution 😉
Update: A couple of hours after this post, NB nightly became functional again . Keep the link above for further usage.