Set down your Bluetooth Webphone next to your PC and the two should synchronize. A personal dataspace should be intelligent enough to know the bandwidth and storage space of your current devices and adjust accordingly. Cache data when needed or use terminal mode when required. You should be able to interact with all of your favorite merchants without any hiccups. When I met with BmyPC, I was impressed with the thought they'd given to data synchronization, but most companies are focused on application services over the Web.
Data needs to be ubiquitous.
You need a ubiquitous virtual home to call your own. More than storage space. More than file sync. More than remote file storage. Click here for more Archive of Sean Dugan's 'Net Prophet' columns.