You can list your personal tasks and check them off privately like other apps, but with WeDo, you also have the option to invite your partner, friends, coworkers and family members to your "Tribes" (similar to Google+ Circles and Facebook lists). The best part is, you can share and work on specific tasks with them. Husband on grocery duty this week? Just create a shopping list with them that you can both add to. Sister helping you plan the baby shower? Chat about logistics with their chat function.
Everything—from the lists to related links and conversations—is in ONE place, which can be super helpful to busy parents who are always running from door to door.
WeDo is currently free, but the Los Angeles Times reports that the company can eventually charge for extra features (for example having groups over a certain size).
Now if only we had a list of apps to thwart toddler tantrums. Oh wait, WE DO!