I tried to download the "Dictionary Free" app from the App Store four days ago, but it's been stuck in "Waiting" ever since. I've tried everything: rebooting the phone, restoring from an iTunes backup, side-loading the app from iTunes, but nothing has worked.
When I turn Airplane Mode on and then off again, I get an alert popup that says "Unable to download application. It will be available for download when you log in to the iTunes Store on your computer".
I've tried what it recommends, but nothing seems to work.
Best Answer
The springboard has several mechanisms to prevent this from being a permanent situation, but sometimes it falls down. Normally you can cancel a download cleanly. I generally follow this advice to "help" the springboard finish or abort the download transaction:
However, you could have your springboard stuck and a restore is needed. This is discussed here:
With the information you provided, it's difficult to tell which of the two causes is happening on your phone.