Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

A curated list of delightful iOS resources.

A small, lightweight, embeddable HTTP server for Mac OS X or iOS applications

Patch iOS Apps, The Easy Way, Without Jailbreak.

Instant, native micro-GUIs for shell scripts and command line apps

The Zero Tiny BLE is a small low cost and low powered embeddable device with an AVR ATTiny85 microcontroller and a Bluetooth 4.0 (Bluetooth Low Energy or BLE) radio.