isn't the antenna in the same position for the desire i.e bottom of the phone? it's not a biiig problem but i have noticed that the availability of H and less faster signals can actually depend on how I hold my phone in my area/house!
for example if i cup it as you would do and clasp firmly around the bottom of the phone, my mobile internet connection does actually seem to be affected.
outside in the open no problem but inside buildings (with walls, various obstacles etc) it actually matters..