I have been wondering if my iPod Touch can replace my laptop when traveling.  My family and I visited Chicago over Christmas and I was able to use the iPod Touch to access the essentials (ie. web, e-mail, weather and of course facebook).  I am thinking of doing the same for an upcoming conference trip.  It will certainly be nice not to lug a laptop through the airport.  On the other hand, I wonder if I will miss being able to use a full-size keyboard? and have a full-size screen available.  I will need to purchase a USB charger.

Update: March 22nd, 2011
I decided to take my laptop to the conference as I needed to grade student assignments.  This would not have been possible with the iPod Touch.  That said, checking e-mail including a few quick responses, facebook, web sites, etc… worked well with the iPod Touch.  I found that I left the laptop in my hotel room and only carried the Touch with me at the conference.  I loved not having the weight of the laptop.  Will see if I can leave the laptop at home for the next trip.