TeamViewer is a popular application for remote control, desktop sharing, file transfer, online meetings and more, that's available for Windows, Mac OSX, Linux, Android and iPhone.
erra is a Python / GTK3 drop-down terminal emulator similar to Guake or Yakuake, which shows up from the top of the screen when you press a keyboard shortcut, like the console used in games such as Quake.
flareGet is download manager for Linux that features dynamic file segmentation, HTTP-pipelining for accelerated downloads, supports HTTP, HTTPS, FTP and metalinks and more. The application is free to use but not open-source.
Oracle has released updates for Java 7: 7u13 and Java 6: 6u39, which come with a Critical Patch Update for 50 new security issues, of which 49 could be used to execute code remotely, without authentication.
The patch that adds the old window dodge autohide behaviour for the Unity Launcher hasn't been updated for Ubuntu 12.10, but an old script that implements the same behaviour, with some limitations, now works with Ubuntu 12.10 and even 13.04.
XBMC Media Center 12.0 "Frodo" has been released today with HD audio, Live TV and PVR support and many other enhancements. Also, the application is now available for Android and Raspberry Pi (although there are no official Raspberry Pi builds provided by XBMC).