Virtual MIDI Piano Keyboard is a MIDI event generator and receiver. It doesn't produce any sound by itself, but can be used to drive a MIDI synthesizer (either hardware or software, internal or external). You can use the computer's keyboard or mouse to play MIDI notes. You can use the Virtual MIDI Piano Keyboard to display the played MIDI notes from another instrument or MIDI file player.
If you have a pre-determined quota from your operator of how much packet data you can use in a month, it's a pain to first find the Logs application, open the packet data counter, then try and work out how much data you have left from the amount used so far. Data Quota shows two simple bars: one showing how much of the data for this month you have used, and one showing how much of the month has elapsed. This lets you tell at a glance if you've been using data up too quickly or slowly, so you can be more (or less) frugal.
Loanr is a simple loan calculator. It's been tested on primary BlackBerry devices and Symbian devices. It's handy to have when looking to purchase a car from a dealer with their frequent jumping back-and-forth from total payments to monthly payments, but also works for other types of loans and less low-pressure situations. The file is unsigned, and may illicit a warning on your device when you try and download it.
RC Flyers Toolkit Box is a handy toolbox for R/C pilots. It helps you manage batteries, flights, charge cycles, and check lists. It helps you keep track of which of your batteries are charged, where and when you have been flying last, how much went in your battery compared to the last cycle, what you have to pack to take with you, and which parts you have to check before flying. For rotary wing users, there is a pinion calculator that quickly gives you an idea about the RPM to be expected.
simplexbmcremote is a simple application for controlling XBMC remotely via the EventServer. It can navigate your collections, start, pause, and stop media, skip forward and backward, control the volume, and switch the subtitles. It is available on the Maemo5 (N900), MeeGo Harmattan (N9/N950), and Symbian^3.
quake report is a simple application that connects to the USGS to retrieve the list of the latest earthquakes and displays them on an interactive map. If possible, it uses location services (GPS/AGPS) to determine your current position and then computes the distance to selected earthquakes.