Only three days after being announced, pre-orders for Sprint's version of the Samsung Galaxy Nexus have already sold out. The current Sprint page for the Nexus says that pre-order inventory is gone, but that more phones will be available on April 22nd, when the phone is released in stores. The Sprint version of the phone seems identical to the Verizon one, with 32GB of internal storage and a 1.2GHz processor; it comes out to $199.99 with a two-year contract.

While we don't know how much inventory Sprint reserved for pre-orders, the Nexus is apparently proving more popular than the company expected. Its other new LTE phone, the Viper 4G, hasn't yet sold out despite being available for longer. If you were one of the lucky customers who successfully pre-ordered a Nexus, it may be on its way to you as soon as Friday; otherwise, you'll probably want to show up early on launch day.