I was up for an upgrade with AT&T so I thought about getting an iPhone 4 to replace my iPhone 3G. After I saw the new Windows Phone 7 operating system on a Samsung Focus, started seriously thinking about switching. I looked at both Android and Windows Phone 7. In the end, Microsoft’s cool interface had me sold.

I’ve had the phone for about a week now and am really happy with it. It’s got the apps I care about so far:

• Facebook: With the most recent update, it’s got everything that the iPhone versions has with a cooler, more interactive interface
• Twitter: Does everything the iPhone equivalent does.
• Yelp: I can get reviews but can’t rate or draft reviews like the iPhone. Hopefully an update comes soon.

Unfortunately there are some apps that are missing for WP7 that I previously used regularly on my iPhone. I’m hoping that either these companies develop for this really cool new platform or an equivalent is created:

• Instagr.am – There’s a version called Apict witch isn’t bad but doesn’t even come close, and it doesn’t post photos to the Instagr.am website
• Hipstamatic – Nothing comes close on WP7
• An official Tumblr app that supports multiple blogs.

The existing photo apps on WP7 are pretty weak. Hopefully in time developers will port or create new apps that will strengthen this area.

One thing that surprised me in a bad way is how poor the battery life on the Samsung Focus is. I’m in the process of playing around with different settings to improve on this. I remember having similar problems with my iPhone but I’ve kept the same settings since my original iPhone. I do remember having to play around for a while to get the settings right.

So far it’s a pretty powerful phone. As far as being a phone, it’s way better than my old iPhone. Quality of the calls is extremely good and haven’t had random dropped connections with full bars.