finally i am back. i am still one piece !
personally i have cingular 8125 which is much like MDA. i love it to death. PDA is 10 times better than sk2 which i had for 2 yrs. Cingular has more coverages than tmobile.
if i am still tmobile user, then i wud choose MDA over sk3 because any PDAs with windows mobile 5.0 can get any softwares you want to put in such as agile messenger(free im program: aim,yahoo im, msn im etc), weather updated news, games, flash player, movies(divx, wmv, or mpg4), GPS, WI-FI, etc. you name them. you can watch the movies with subtitles from your home pc through orb.com. there are more awesome features you can find for any PDAs.
sk3 isnt bad in my opinion but it limits you to choose what you want. What it doesn’t have is GPS, videos playbacks, and WI-FI.
personally i wouldnt go back to tmobile. i wud look for sprint pcs, verizon or cingular for better network coverages. tmobile is like one year behind with the networks. for intance, tmobile just got EDGE network last fall as Cingular now has HSDPA networks and Verizon and Sprint PCS have EV-DO networks.