The T4/RK3/K4 work great as a browser if you do the following things:
1. For the T4 get a good AP and place it as close to the device as you can. The range on this is very poor.
2. Do NOT use standard formatted web pages. These are built for must must faster processors and will kill the machine. Keep in mind this thing is running the same class of processor as a cell phone so use cell phone pages. There are tons to be found. Go to
http://www.pdaportal.com. Keep in mind you will probably have to manipulate the URLs a bit to optimize them to go exactly to the page you want.
http://www.noaa.gov has some text only pages that can be used to load weather. I actually have RADAR maps running on RK3s that work great but I am only pulling the image for the animated gif and it's very small.
3. We have a standard package we include with our RK3/K4/T4 configs that include local weather forecasts, news, sports and finance and it is decent for getting quick summaries of data. It fast, clean, looks great and is very impressive to show off to a customer. It really takes the system to the next level and it's a great value add.
4. Disable all the browser naviagation and only display single pages at a time with limited hyperlinks. Direct the user to specific information that is small and light weight. Do not set this thing up a generic WEB Browser.
5. Another really cool thing to do is add a page on your company web site that is formatted to a PDA size screen. With some help from you web folks you can setup a URL in the from
[Link: companyname.com]. When they pull up the page you can have a button to schedule a service call or contact a sales person and have your web page send you an email. It's a nice touch and shows you are serious about customer service.