PDAStatus

Battery – Shows current power % and AC/Line mode, opens system Battery page on tap
ROM – Shows available ROM, opens system Memory page on tap
RAM – Shows available RAM, opens system Task Manager
SD/CF card – Shows available SD memory, opens card root directory
Display backlight brightness – Shows current level of display backlight (shows value depending on AC/Line mode), on tap opens device-specific backlight manager
Balance – Shows current SIM-card balance, query and reply parsing options are customized in plugin settings. On tap proceeds immediate query
Phone – phone module status, turns on/off phome module on tap
Wifi – show current wifi module status
Bluetooth – current bluetooth status, turns on/off on tap
SMS – current SMS store status (number of unread messages), opens standard tmail.exe on tap
VOIP

kudos to Anton D. Nagy @ pocketnow.com for the find.

Source : corner-a.com

=== DOWNLOAD===

From the developers Website ( may be they have a new version )
PDAStatus v1.2.1

Tags: battery monitoring, memory meter, open source, PDAStatus