Gingerbread? the one I am using now...

Pre-Froyo firmwares can be considered as beta firmwares but Froyo was very good actually. Early Gingerbread was behind it but it surpassed Froyo later. ICS is superb.

Compared to the stability I am used to on iOS and WP, yeah Gingerbread feels like a beta to me.

The thing is, you've completely categorized yourself in the first post as an Android user so trying to sell Windows Phone to you is pointless If you care about specs and phone specs limit your phone enjoyment, I don't see WP7 in your future.

I've used all 3 major platforms and the reason I'd keep using WP are below -

1. Great email client. Works amazingly well with MS Exchange, Gmail and Hotmail which covers all of my email accounts

2. Best keyboard of the bunch. Keyboard feel and predictive text is better than iOS and Android. No swype gimmicks needed...

3. Runs efficiently and lasts me the whole day.

4. Visually pleasing. Tiles, fonts and minimalistic style used on WP I find pretty to look at.

There are other elements that WP does well like gaming and MS Office, however these 4 features I find WP ahead of the competition.

As far as specs are concerned, specs alone are meaningless to me. Despite the single core cpu and 512 MP of ram I am able to do most things I want to do on WP7. I am able to remote access my desktop from home, turning it on from sleep remotely and moving files from the desktop to phone and vice versa. I can stream any song or video from my massive collection at home to my phone from anywhere that has internet. I can even stream flash videos to the phone, despite the fact it doesn't support it...

Stability is the 1st thing that comes to mind. I never ever have to reboot my HTC HD7. So looking forward to a Lumia 900+ (Rumor has it that T-Mobile will get a slighlty updated 900) on T-Mobile later this year. The 1 Android based phone I had needed to rebooted daily. Most everyone else I know that has an Android based phone reboots often.

#2 is the Metro UI. It isnt the tiles its is that the tiles are live with information. Someone earlier complained about the people tile that it had random tiles. They are not random at all those are pictures of your friends and contacts. Live Tiles are all about my life, my contacts, my social networks, my wife, my kids, weather where I live, my stock portfolio, me...me...me. It isnt just a grid of icons.

I tried a Lumia 900 today and the phone impresses... the look and UI is better than any Android I have tried... even the iOS UI seems outdated now (and I love the iPhone UI).

 I got an urge to leave my Nokia N8 (Symbian^3) to buy that Limia but it's impossible to live without the N8 12MP camera plus XENON flash.

Anyone here knows a phone with the camera like the N8 have?

The Nokia Pureview is supposed to be coming out soon. It's supposed to have the best camera out there.

WOW!!! Nice to know... I don't need 42MP but the Xenon is essencial for night pictures .

Xperia S i heard has the best camera on the market, but its Android 

The 41 MP are actually "condensed" down into 8 MP or 5 MP so they're quicker for storage and even sharper. 

This video shows of the night-time quality and superb audio quality. (Nokia says it's as good as CD audio.)

I listen to every tech podcast out there every week...no one has ever mentioned Xperia S as having the best camera. The only good feature most people have said Xperia S has over other Android phones is the quick wake-to-snap ability thanks to the dedicated camera button which they ironically borrowed from Windows Phones.

Samsung S2, iPhone 4s, Nokia N8 and recent HTC one X tend to be considered the best cameras on a phone. We will see where HTC titan II will land with its 16 MP sensor.