Thanks for clarifying that for us. However:
You may also wish to find out whether your and your wife's employer
Don't I wish. With a summed age of 138 years, not too many people are banging on our door.
I wonder what would happen if I did manage to sell my book. Against all odds, I know, but what if? Would they then be able to say I'd used if for commercial use? Unlikely it will be put to the test.
I'm a WP8 devotee. Just a comfy cardigan for me. However, the final edit must be done in MS Word, to be quite sure of the layout when it hit's the agent's screen. There's a lot of it, and a rewrite would probably have to be done posthumously.