I thought in view of your fantastically long post, that it might be easier to post above it, lol....
Where to start... firstly, this would rate as the most interesting and inciteful posts on this thread so far! What I find interesting is that you are a well educated professional person who hasnt had much experience with domains before, who has seen the huge potential for .tel. This is a sure sign in my view that many non domainers will share the same view of .tel. I have actively been getting feedback from non domainers about the .tel concept and many have said it's a great idea and they would consider buying one...the Spartan .tel page does not phase 99% of the folks I have spoken too, they mostly share the view that simple and plain is best.
My points before I forget: ICAAN will not approve another similar domain using the dns for a similar purpose, this has been stated by ICAAN itself, so we dont have any worries there. Regarding the years it took for approval- many domainers are quick to gun down ICAAN for being money hungry and greedy- in my view, perhaps some of this is true, but I'm impressed in a way that they wanted to ensure the long term success of the .tel domain by getting telnic to comply with stringent requirements before allowing .tel to be approved.
I have also not been as excited about a domain before- I think it's the potential for words instead of numbers idea and also the fact that like you say, paper phone books days are numbered.
Your argument about having a .tel and a longer .com is something I hadnt even thought of but actually does make sense..my only question regarding the bigger than .com idea (where folks go to a .tel first) is will people want to click twice or more to get to the .com and Im still on the fence about this one, however, texting on a cellphone seems far more laborious a task in my view so who knows...the click to connect feature is also very powerful and fast.
P.S. did you say $70000? (I feel much heavier in the pocket now, lol)
:o