I can't say enough about my X5, while some publications will continue to compare to the 1910 and compare size, they don't relly compare features or power.
The X5 is really configured to compete with more exspensive PDAs from compaq and the like,they seem to forget or ingnore this fact, I guess some don't wan't to upset their advertisers.
If you compare the X5 to some higher end PDAs that are similar in power and features to the Dell the size issue is a draw.
Even then it's not really bulky, but hey then what would the Axim haters have to say about the 300 dollar price difference.
The 1910 is a fine PDA, but it's really not expandable or brings the features needed to take advantage of future products coming out shortly in the Pocket Pc world.
Get the Dell, it should make you happy.