>Windows Phone Tango will bring many cool improvements but also some tight restrictions for low-end phones. Russian site WP7forum tested Tango on a dev phone (the HTC Mazaa) and they've dug up some very interesting details on the matter.

Let's start with the bad news – Tango will enable phones with just 256MB RAM (all current Windows Phone models have 512MB). That's quite low for a smartphone…

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