Photographers, pro and otherwise, have long wished to be unleashed when it comes to working in a studio or on location. Some situations make it easier than others, as do some manufacturers. Nikon and Canon both offer Wi-Fi transmission of photos through transmitters -- but as they cost nearly $800, they arenĂt at the top of the priority list for many photogs outside of the pro ranks. The Eye-Fi Pro X2 SDHC memory card is a $150 option that promises to make wireless shooting possible for the casual user, as well as some working pros. We find o