If you've been carrying around a Lumia 710 for T-Mobile in your pocket and waiting for the day when you'd get a taste of Tango (Windows Phone 7.5 Refresh), you'll be happy to know that it could very soon. An internal memo passed along to WPCentral has Microsoft delivering the update on June 20th. Much like you'd hope, it should switch on hotspot support to share that HSPA+ network with others; many of the fixes between Mango and Tango will have snuck their way in as wel
