I don't, but it might be interesting to do in order to have time and location easily stored with the images taken. Images can be uploaded to (for example) Panoramio.com. (The new Sony A55 has GPS aboard) Which geotagging devices are recommended ? No PC needed: ATP Photofinder, does NOT support RAW, not sure it supports 64 bit software. Holux (HOLUX - The Pro Name in GPS), advice from a DPR member. Any reviews ? Comments are welcome.