Best software i have ever come across, in terms of Photo Editing.
Other companies can try but cannot beat there incredible features.
Have been working with photoshop from Version 7. Now am using CS5(version 15). It has improved a lot. Must say a fully packed software.
Infact... the best thing with photoshop update is. We can work on a design in a higher version like CS5 and open the same design in CS, without any loss of data. Amazing. I think corel-draw should also come up with something like this. All the formats should be compatible with each-other.