It has also been reported that all Windows Phone 7 apps will work on Mango as well – so there’s no form of “fragmentation” here – which is good news. But considering how we’re still on the first generation of WP7 phones that all feature similar hardware – it’s not really a big deal. We’ll check on the situation again next year when there are more devices, not to mention manufacturer customized devices (i.e. Nokia) on the market, and we’ll see if the situation is the same. With Mango already complete and now in the hands of manufacturers, a thriving eco system and a slew of new devices that should be announced later this year – Windows Phone 7’s first birthday should be pretty happening.