UK wireless provider Three has had the misfortune of having its entire summer handset lineup leak online, but its loss is our gain. What does the next few months look like for the carrier? Busy. In April alone, the company will release no less than three handsets, the Sony Ericsson Xperia Arc, the Samsung Galaxy Pro, and the until-now-unknown Samsung Galaxy S II Mini. The smaller version of Samsung’s high-end smartphone will boasts a 3.7-inch WVGA screen, 1.4GHz processor, 21Mbps HSDPA radio, 5 megapixel rear-facing camera, VGA front-facing camera, Wi-Fi b/g/n with hotspot capabilities, and Android 2.3 (Gingerbread). And that’s just in April. In May, the company plans to release the HTC Flyer tablet, HTC Wildfire, Nokia E7, and Samsung Galaxy S II. June will bring the Nokia X7, HTC ChaCha, LG Optimus 3D, and the Wi-Fi only BlackBerry PlayBook. It’s going to be quite the summer for Three customers looking to upgrade their mobile hardware. Let’s hope some of these device, especially that S II Mini, make their way across the pond sooner rather than later.