Try this. Needs .NET 2.0 on the device as DateTimePicker is not present in .NET 1.0. Will also work on the desktop but my ControlsExDesktop includes this. Use the help for DateTimePicker in my ControlsExDesktop Updated FormExDestop and ControlsExDesktop libraries This library is a little different due to device limitations. There is no Close event and FontSize is in ems not points.
EDIT :- Having looked a bit closer at the docs I do not know what units the FontSize on the device is measured in. Trial and error will have to suffice if you use this!