Adobe Explains it All: Photoshop (article)

Question

We've just had a heads up about this article, the first in a series that will cover Adobe's key products.  I guess it is no surprise that they kicked off with Photoshop
Adobe Explains It All: Photoshop
One thing that came into perspective after reading the article, was answering the question in the last paragraph, which boiled down to what did we do before Photoshop?  Well for me — and it's a safe bet I won't be the only one here — I was doing OK before Photoshop, and didn't even start using it until version 4!  When I did start using Photoshop, in many respects it was not as good as what I had been using for a good few years before. 
I started computing with a BBC Micro, and I was kind of proud that mine had the serial number 000050, but it was not until I switched to an Amiga 1000 and Deluxe Paint that I could really start seriously getting into graphics.  It could do 3D animated text in (what we thought at the time) 256 wonderful colours (you have to smile at that now), and with the addition of a cheap Genlock, you could superimpose your Amiga graphics onto video.
Deluxe Paint V was definitely ahead of its time.  So who else remembers it?

Answer 1

Yes:
Adobe Frowns on Photoshop Verb
http://www.adobe.com/aboutadobe/pressroom/pressmaterials/pdfs/photoshop_guidelines_pr.pdf
Google had the same issue Official Google Blog: Do you "Google?"
My understanding is that they have to be seen to publicly protect their brand by publishing guidelines on correct use of trademarked terms.
If they allow "photoshop" as a verb to slip into common vernacular (even though that horse bolted long ago) without protest (published guidelines on correct usage) then they risk losing the trademark if a challenge arises.
Or something like that.