Hi. I'm looking to purchase a device that has phone and email app (this bit is easy) but also GPS navigation with maps.  Which HTC device should I select?

Hi Dudely - have you considered the HTC P3300 - this Mobile Phone also supports email and GPS Navigation including the maps you require

 

Please refer to the following for further details:

http://www.devicewire.com/HTC-P3300-Premium?sc=15&category=2668