I've been waiting for the lauch of WP7 for a long time. Now the price is relative acceptable for me. But a lot of issues still exist. I work in Russia, so I need a unlocked phone which is very hard to find in United States.
Get one in Europe, where in most places it's possible to get a phone SIM-unlocked legitimately, but be sure to check with the carrier first.
People always complain about the sync of contacts. I want to use WP7 to receive emails but I don't want to put my business contacts on Windows Live.
Windows Phone 7 supports having multiple EAS accounts (Exchange and Hotmail are both EAS services, Microsoft claims Google is too) so that shouldn't be a problem. So you can continue to keep your personal and business lives separate (but then, why are you using Hotmail for business?)
Pros & Cons made confused. Is WP7 worth a buy now? Do you have any recommendations (HTC HD7, Dell Venue Pro, etc)? How to buy a unlocked phone?
I would not personally buy a WP7 device. The OS still falls short of what iOS provides, and Microsoft's hardware mandate needs updating. If you had to get a device, the HTC HD7 is highly regarded by critics.
You can buy an unlocked phone (or a locked phone you can trivially unlock legitimately) from pretty much anywhere in Europe.
Any sugggestion is appreciated!
Get an iPhone. Seriously. I've been using Windows on devices since 2001 (when it was called PocketPC 2000) and my iPhone (which I've had for only a month now) fits into my near-homogenous Microsoft/Windows-only environment fine.
Failing that, get an Android. At least those two platforms have a large ecosystem around them. The developer community around WP7 seems to be on artificial life-support from Microsoft.