Sprint’s highly anticipated Samsung Galaxy Nexus is no longer available for pre-order after initial stock sold out this week. Pre-order availability began just this past Monday, and Sprint’s pre-sales launch inventory was depleted by Thursday evening. It is difficult to gauge demand since the number of Galaxy Nexus handsets Sprint had allocated for pre-sales is unknown, but a source told BGR that “pre-sales supply was healthy” ahead of the device’s launch on April 22nd. The Samsung Galaxy Nexus features a 4.65-inch Super AMOLED display with 720p resolution, Android 4.0 Ice Cream Sandwich, a dual-core 1.2GHz processor, a 5-megapixel rear camera, 32GB of internal storage, NFC and 4G LTE connectivity, though Sprint’s LTE network has not yet launched. The Galaxy Nexus is not compatible with Sprint’s current 4G WiMAX network.