Here are few things that haven't been built:
1. Business Intelligence:
* Ever tried to run a data query from your phone? Almost impossible.
* We need a mobile first BI app that lets employees pull data via voice.
* Still incredibly hard to do basic design work on your phone.
* Build an app that lets you copy and paste elements from any application.
* Easily move app elements to show UI/UX concepts (i.e. "what if we put the sign up button here?")
* Ever tried scheduling a meeting with multiple people from a phone?
* Impossible to check their availability, find an open room, add a VTC, etc.
* We need an app that lets users easily book meetings with co-workers, possibly using voice.
* Still requires desktop.
* Any business task involving Excel is nearly impossible on a phone - ask any finance professional.
* Microsoft Excel Mobile is unusable, as this is a hard problem to solve.
* I know what skeptics say - "spreadsheets aren't meant for phones" - bah product humbug.
* Sending wires should feel like using Venmo.
* Nobody has built an enterprise/power user grade version of Venmo that allows users to easily input routing information & send high $ amount wires.
* Most payments above a few thousand dollars happen on desktop.