MapJack - A Much Better Version of Google Street View

MapJack is a great mapping tool that I came across today that is similar to Google Street View but much better. It's limited to just a few locations at the moment (San Francisco, Sausalito, Lake Tahoe, Yosemite and Chiang Mai, Thailand) but the quality of images is much better than those found on Street View. It'll be a great tool for me when planning my trip to San Francisco.