The one thing I might still need my laptop for, on even a short business trip, would be to use it as a serial console for a headless system. I do that with some frequency, still, and a surprising number of sites just don’t have a handy serial terminal.
I’d pay good money for the ability to use my iPad as a serial console, via a null modem and a terminal app as good as iSSH.
Jon Lasser 
FlexSerial© Serial (RS232) Data Cable Cable for Apple iPhone 3G
http://bestcelldist.com/apple_iphone_3g_serial_data_cable_flexserial.html
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You an me both… The lack of a Serial connection is the only reason I dont have one .
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the flex-serial cable is what you looking for.
I did a post here:
http://routing-bits.com/2011/01/03/console-to-routers-using-the-ipad/
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Get Console is an app that provides serial terminal without jailbreaking. needs the Redpark C2-RJ45 cable – available from http://www.get-console.com
Cheers
Simon
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