Your iPHONE 4/4s,Galaxy S2 for Lumia 1020/1520

Microsoft offers a Lumia 1020/1520 for your iPhone 4/4s, Galaxy S2 

Just two days ago Microsoft announced a new trade-in deal for the US and Canada, which can give you up to $250 of store credit if you give up on your old smartphone or tablet. Today Microsoft has extended this deal with a special offer.
If you opt to return your old Apple iPhone 4, iPhone 4S or Samsung Galaxy S II, you can have a Lumia 1020 or Lumia 1520 for free. Your old phone just needs to be working, with no missing parts or pieces. The deal expires on March 2, or until supplies last.

The catch is that you'll have to sign a two-year contract with AT&T, to get the free Lumia unit. Lumia 1520 otherwise costs $200 on contract, while the Lumia 1020 has already dropped down to just $100 on a contract.
Anyway, if you want to trade in your old gadget for a new Windows-based one, feel free to explore all deals throughout the US and Canada before making a decision.


source:gsmarena