Is charging in dock every night bad for the battery?

I am getting an iPhone 4 in a few days and was planning on getting an iHome dock to use as an alarm clock for college and work and things. If i plug it into the dock every night to use as alarm clock will it lessen the battery life?

No. When in a dock it is running on the charger and does not use the battery. See:
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
MacBook and MacBook Pro- Mac reduces processor speed when battery is removed while operating from an A-C adaptor
Battery University

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    null

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