[brudgers]

There's only been one generation of Windows Phone with two releases.

Windows Mobile was substantially different and went through many generations with upgrades dependent upon carrier implementation.

[glhaynes]

True from Microsoft's perspective but from a customer's perspective it looks like "Windows for phones" changes radically and entirely incompatibly pretty often.

Edit: On the other hand, most of the current market probably didn't know about Windows Mobile so perhaps that's mostly moot.

[freehunter]

Twice in the past 10 years, or once every 5 years. That's the difference between iOS 1 (2007) and iOS 5.

[glhaynes]

We could just as easily say "twice in 2 years, or once every year" since the first WP7 devices shipped in late 2010 and WP8 will be out by end of 2012.

[freehunter]

That's ignoring the long history of Windows Mobile from 2002 to 2010 though.

[onetwothreefour]

That history is irrelevant since we're talking about Windows Phone and not Windows Mobile.

Did HN get over-run by MS employees or something? What the hell is going on! :)

[sjwright]

WP6 > KIN > WP7 > WP8. I count three killed platforms in three years.

[freehunter]

Kin wasn't an official Windows Mobile/Phone platform, though.