This week, take better iPhone photos with Nova flashes, cancel sending that email criticizing your boss before it’s too late, and what it’s like to become the Dark Knight.

Nova portable flash make iPhone photos more professional

Nova is a LED flash the size of a credit card that connects to your iPhone with Bluetooth. It’s a powerful device that can provide a range of lighting options, from low-level fill light to a high-powered key light.

Because the flash is not connected to the camera, you have control over the position and angle of the light you use to take a photo.

And now you can control up to 10 of them at the same time from one iPhone.

The flashes are controlled by the Nova Camera 1.2 app

The Nova is only Cdn$60 at the Apple Store. You can get a four pack of Mint Novas direct from Sneaky Squid for US$177.

Can a short email send delay save you from your stupidity?

Google’s email client, Inbox, designed for mobile users, is now in open release, so anyone can use it. (Previously it was only available to select users who were invited to beta-test it.)

Using Inbox will take some retraining, because it doesn’t operate in the same way as Gmail or other email apps. It groups emails it considers to be similar in “bundles” and it highlights messages it thinks are most important to you.

Inbox also gives you access to an “undo” feature that lets you cancel delivery of a message if you change your mind after sending it.

Google announced Monday that it was going to enable “undo send” for Gmail, too. Within a couple of weeks, Gmail users will be able to configure a setting that allows them to delay sending an email by between 5 and 30 seconds.

Arkham Knight game raises the stakes for Batman

Developed by Rocksteady Studios, the latest Batman game, Arkham Knight, is the best Batman game yet.

With the first game in the series, Arkham Asylum, Rocksteady has made being the Dark Knight believable, from the flowing movements and fighting to gliding through the air to using investigative techniques as a detective.

All of those things are still true, but even more so. And while I was skeptical about introducing the Batmobile into a game that made it so much fun to fly through the air, I’m happy to have been proven wrong. The vehicle only adds to the fun of traversing through Gotham.

Spoiler altert: WIth the Joker dead (that happened in Arkham City, the second game in the series), Scarecrow is the villain in this game. And while you can be the Batman, you can also be Robin and Catwoman, who are playable characters.

The actors are at the top of their game, and the plot is exactly the kind of dark and twisted story that we expect from an Arkham Batman story.