Stuck means stuck. You can't trigger the delete, it's icon doesn't present the X when you switch to icon manage mode. The apps stuck loading never finish. Switching networks, power down, force power down - nothing helps.
I went to itunes and synced my iphone. then i deleted the loading app through itunes. you can do this by going to the Applications tab and right clicking on the problem causing app. agree to move it to the recycle bin and then re-sync your iphone. it worked for me.