I am a CSM for another airline and use my iPad to do reports all the time. I am able to connect using Citrix to my airlines network and use all the systems you would be able to use as of you were on a computer in the office.
It's fantastic because it's so compact and light weight. I might change to a Macbook Air next new model they have but it certainly is better than writing, holding on to the paperwork and having to fax it off or post it.
The only drawback is typing can sometimes be slow in Citrix.