Is It Worth Shifting To Photoshop CS5? (slodive.com)

Technology is just a quest for one more improvement or just one more modification. All the technological advancements are now measured in terms of better features or performance improvement. They have been numbered as well, for instance, WordPress 2.9.2, then, WordPress 3.0, HTML 4, then HTML 4, Adobe CS4, then CS5 and similarly lots more.