If you are looking to run medical software you are probably better going for the Treo as it will have a wider range available for it.
In particular, Epocrates is only available for Palm, Pocket PC, Windows Mobile Smartphone and Windows Mobile 5 at the moment.
Regarding wifi, you can get a wifi card to plug into your treo:
http://store.palm.com/sm-wi-fi-card-...i-1853744.html
Or, you could buy a Palm with wifi already such as the Palm TX:
http://store.palm.com/product/index....entPage=family
Hope that helps,
Chris
__________________
Dr Chris Paton BMBS BMedSci (Notts UK)
Lecturer in Health Informatics, University of Otago, New Zealand.
www.hein.otago.ac.nz
CEO, New Media Medicine Ltd, e-Learning for Healthcare.
www.newmediamedicine.com