This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
As far as I'm aware,inputTextArea can support up to at least 64K bytes, although Your Mileage May Vary, depending on the browser. But the only validation I can recall it supporting is the "required="true"' constraint.
Customer surveys are for companies who didn't pay proper attention to begin with.