One of the big challenges about using UMPCs and Tablet PCs to empower Store Managers on the store floor has been battery life and weight of the devices. I was reading about Flash SSDs and certainly feel that it could be the begining of increased application of mobile devices like tablet pcs and UMPCs.
Comparison Chart from Samsung:
The specs look pretty awesome too with a max of 64GB and 20% more power efficient than HDDs. From Samsung:
Samsung SSD: http://www.samsungssd.com/what_is_ssd/overview.html