first documentation ...(auf deutsch)

Jar-Application download V0.14 (44kB)
perhaps those 2 files are needed, too: .jad manifest
this page updated: aug 5th 2009

note: the german version might be more up to date... if needed drop me a line and I'll update the english as well


This little application is meant to provide oftenly used informations and calculations on a mobile phone. In order to do so it comprises a single XML-file containing the navigation and content. Only optional images (nothing but png will be accepted by mobile phones) have to be supplied separately. The XML-file and the optional images are directly contained in the JAR-file and may be edited, added or removed at any time without recompiling the application.
...more info on that here

The content may be simple texts, optional with one small image or forms to perform calculations. The formulas to calculate are not limited to the 4 standard arithmetics of mobile phones; they even allow simple program steps.

try it out

On there are 2 ways to try J2ME-Software without a mobilephone. Both of them work on any platform that has a working Java installation and they are free. Just for being sure: I have nothing to do with this emulating software and thereby do not take any responsibility...

1. JavaWebStart: start it
Clicking the link starts JavaWebStart and will download the emulator from (1,8MB). Afterwards you are asked to grant full access because the J2ME-emulator will run locally.

2. local emulator: the Mpowerplayer SDK comprises besides other software a standalone-J2ME-emulator. After downloading the software (appr. 6,5 MB) put the Brian-files (Brian.jar and Brian.jad) into its program directory and run the emulator: java -jar player.jar Brian.jad


(taken from the emulator of J2ME-WTK, german version shown)
a forma simple form (here to convert temperatures)
text and image(really) short text and image (of an XLR-plug)


the content at the moment comprises:

some more words...

about the XML-file or "how to edit the contents"

a short list of compatibility
phone works notes
K700, W800
yes formating of text and the search-function do not work
Nokia 9300, 9500
Nokia E50, N70, 6288, 6230, 6131 yes  
Nokia E61i partly due to a bug in nokias java implementation the cursor gets locked in some fields - there is a special version as a workaround, but only with the german content file...
HTC Touch diamond = O2 xda diamond yes  
Motorola A780 yes  
Vodafone VPA Comact III
(Windows Mobile 5.0)
Nokia 6610 perhaps there are problems caused by phone's MIDP1.0 cababilities
V0.14 Sept 2007 added hex/bin-format for fields
V0.13 Feb 2006 small changes...
V0.1b Feb 2006 natural and common logarithm added, some more content
V0.1a 2005 fist version

Christian Güssmer 2005-07
based on code from Konstantin Knizhnik and henson.midp.Float from Nikolay Klimchuk
compiled using Sun J2ME WTK on Linux


Please keep in mind that I do not take any responsibility for this software - use it freely but also totally at own risk!

If you want to say "thank you for this application", you might use the following link to Thomann. It would be very kind to do that before ordering something there, of course. :-)