Only allowing one friend seems a bit odd. A social feature without a proper social group. Although I can't see myself using this anyway so I'm not too worried.
I really like the idea of detailed insights and the goals, but these both make sense as paid features. They're the things that would make me pay if they could be proven to be useful, although I'm a sucker for statistics.
On a slightly unrelated note, it would be nice if we could click outside of a modal and have it disappear, rather than having to click X, like many other systems do.
Lanes looks really pretty, I love the design of the timer tab, and I'd really like to start using it. I've just followed you on twitter for any updates.
The cap on social features is a temp step while I design the process flow, so won't be around for long.
Let me have a think about recurring tasks. Catch me via Twitter or in-app chat if you don't see any move on this in the next week. Cheers.
One last thing, don't suppose you have an api? I'd really like to display my next task on my desktop status bar.