I have been doing some work developing Android applications with Phonegap over the last few weeks. Getting the Eclipse and ADT is always a breeze. Downloading the required Android SDK libraries using SDK manager is always a pain though the speeds seem to be terrible, with the required time to get a new set of libraries often being over a couple of hours.
After much pain and suffering i learn’t it doesnt have to be this way though!
To fix, click on the tools menu and select “Options” from the drop down.
Then select the clickbox labelled “Force https://… sources to be fetched using http://…
If a download is already in progress cancel it, close the SDK manager and then reopen and start the download again. You should now experience alot faster download speeds, in my case I saw the speed increase from ~50kb/s to around 1000kb/s.