I'm facing three problems after I switched over to android, especially to Fascinate.
First, it doesn't provide SMS delivery notification. Applications available in the market cannot solve the problem. I'm talking about Tata Indicom. Other members on Reliance may share their experience, if otherwise. I'm not sure whether it is an android issue or not. Also not sure whether the later versions of android (froyo or gingerbread) have solved this SMS delivery notification issue or not.
Second, Fascinate doesn't allow conference calling while in roaming. Adding a '3' before connecting the second number doesn't solve the problem. I never faced this with hTc Touch (Sprint Vogue). This is a very big problem for me. While I'm in home circle, I face no problem in making conference calls.
Third, if you use TataZone internet packs which are wap packs, you will be able to browse only on the default browser. Better browsers like Opera or Dolphin cannot be used. Also you will not be able to use google applications like Market, Map, Gmail etc. Although I access Gmail on wap in a round-about way. On WiFi all applications are fully accessible.This problem was not there at all with windows phone.
These are the only issues I experienced with Fascinate. Otherwise it is a marvel. The super AMOLED screen on gorilla glass is super sensitive and fantastic. The SWYPE allows very fast input (I'm writing this post on my phone quite fast) and this facility is absent in Incredible. The GPS, accelerometer, compass, camera, speaker of Fascinate are of very good standard. You'll love to use this sleek marvel.