You need a piece of hardware to connect the x50v to a monitor or projector: (1) the presentation bundle available from Dell includes the VGA cable and the ClearVue software suite that allows to display .doc, .xls, .ppt, .pdf, plus various image formats in 1024x768 resolution on an external display. (2) just the VGA cable from either
here or
here.
The x50v has a built-in Mirror mode which can clone the PDA screen on an external display. But that resolution is limited to 640x480.
Then there is
Nyditot. It can use resolutions of up to 2000x2000 on the internal or external displays. I have not tried this.