Open Eclipse and click on File/Import/General/Existing Projects into Workspace/Next and Browse to the cloned directory.
The repository gets updated regularly so use 'hg pull -u' to get and update the latest repository. In the command window type: hg clone and some time later your clone will be there. Hold down the shift key and right click on the directory then open a command window.
You can download the current APK by scanning or clicking the following barcode.