The charge/USB port is the most glaring weakness, I whince a little every time I plug into my reinforced USB port.
If you do the Palm Touchstone inductive charging mod you are free of damaging your USB port and that can be kept for USB host mode in the field and emergency charging.
http://talk.maemo.org/showthread.php?t=56950
The only downside is that the inductive charging requires a seperate charging logic board so your phone will act like it is on battery even when on the charging puck.