News and event reminder in voice by text to speech
Announce crucial market-moving news in voice using a text-to-speech engine. Also remind trader of an upcoming scheduled event, what's consensus, then announce again when event has happened, what's the actual vs. consensus.
Can also have voice reminder for various trading session open and close based on symbols watched (e.g. European stock market opens in xxx minutes, which can affect US futures, forex, but not US stocks).
Other reminders that are nice to have: contract expiration, earnings announcement and other corporation action, analyst upgrade/downgrade, trending tweets related to trading...
Should provide filter to select only the things that the trader cares about.
Traders have too much to watch and providing voice announcement is more convenient.