Sudo-nifique is a free Sudoku app for generating, playing, and solving Sudoku puzzles. Generate Easy, Medium, or Hard puzzles, or input your own Sudoku and solve it!

http://appshopper.com/games/sudo-nifique

the Clave is a clave pattern metronome/click track app with four selectable clave patterns: Son, Rumba, Afro (6/8-style) and Bossa Nova.

– The current pattern is shown on-screen in traditional notation, with each beat highlighted as it is played.
– Tempo is variable from 40 to 180 beats per minute (cut time), and the timing is rock-solid: accurate to the nearest sample (22 microseconds). All patterns start in 3-2 (“forward clave”).
– Playback continues when the screen lock appears, and also when the silent switch is active (on iPhone). The application responds to the volume up/down keys.

It’s a useful practice aid, whether you are beginning to play Latin American music, or an experienced sonero.

http://appshopper.com/music/the-clave

Be ready to take on the machine! Select carefully each side and try to get as many squares as you can…

http://appshopper.com/games/square-war

Create SMS and Call shortcut files with just a few steps.

Manually creating shortcut files for sms and call sending to specific contacts requires using a text editor (in PPC and PC) and then manually typing text codes and memorizing the phone number for that particular contact, then repeating the same procedure again and again for each contact.

oldsap has created this simple application to automate all of this.

The shortcut files created will allow you to automatically create a new sms for a particular person, or make a call to a person, depending on what lnk file you chose to create.

http://forum.xda-developers.com/showthread.php?t=555574

Power Radio is a FM player with RDS decoding, at least on HTC HD.

http://forum.xda-developers.com/showthread.php?t=531600

With Locale and the Wake On LAN Plug-in (WOL), your phone can wake up a sleeping computer when you are in a specific situation, for example entering Work.

Your computer needs to be configured to be able to wake up.

Requires the free app “Locale” from the Market.

https://slideme.org/application/locale-wake-lan-plug

With Locale and the HTTP Request Plug-in, your phone can post a http request to any Server available to your phone.

You could update your status online, control your home entertainment system, log into a Wifi at Work.

This is a plug-in: it requires “Locale” from the Android Market. You can not start it without Locale.

https://slideme.org/application/locale-http-request-plug

Ever been in an uncomfortable situation or with someone who talks too much? Just set the contact, time, and ringtone, and the phone will ring with a fake call, allowing you to escape!

This is the ad-supported version of this app.

https://slideme.org/application/call-list

Know that you’re going into a potentially uncomfortable situation that you could get out of with a fake text message? SMS Faker does just that – just supply the message, number, name, or pick a contact. You get a fake SMS!

This is the ad-supported version

https://slideme.org/application/sms-list

An expense tracker which can track multiple accounts in different currencies. It’s designed to be easy to use and provide all the functionality necessary to track your accounts and expenses easily and quickly.

https://slideme.org/application/funky-expenses