Thanks for finding the bugs, I'll take a look asap.
I think you may be viewing the read-only task set, in which the checkboxes will soon allow you to download and forward the selected tasks.
The 'who' column is definitely under consideration.
I'm aware that a task management app can easily become something that's trying to cater for everyone. As this is the MVP at the moment I'll take your suggestions into consideration, so thank you I really do appreciate it.
In my eyes Google Spreadsheet is very generic, you could compare it to thousands of apps out there and argue that it is better. I'm really trying not to make another generic task manager, but one which is suited to teams working together in a multi-office environment.
To answer your question (if it is still required knowing my intentions a bit better), Google Spreadsheet requires you to sign up, it requires typing in fields such as a 'status' or a 'priority', it doesn't look as attractive, and it's always going to be branded as 'Google Docs'. Most importantly, it's not a task manager! Although it can solve a magnitude of problems, it's not exactly tailored to a specific one. Some would argue that it has more value, some would argue it has less.
I'm aware that this market is crowded, but I appreciate you believing I have a good start, and I really hope that the simple concept I'm trying to introduce will be noticed by a small fraction of the market out there who may find my product more suited to their business need than the product they are currently using.
Cheers!