I have developed quite a few mobile applications in my time.
This ‘museum’ contains some screenshots.

Some of the later programs are available from http://simonjudge.com/freeware.html.

 

File Explorer: The first available freeware 
for Series 60 3rd Edition

ClickSMS for Series 60
Sends cheaper (and flash) SMS messages via Clickatell

Websters for Series 60
written in Flash Lite 1.1

UK Weather for Series 60
written in Python

 
StockQuote for Series 60
written in Python

Series 60 PhonePrint for Pixology. In use by Boots (pix2Print),
Jessops in the UK and Duane Reade in New York.
Nokia Application of the Week

A selection of J2ME applications

Series 60 Spell Checker

Series 60 Thesaurus

Series 60 Fax Program

Series 60 Weather

Series 60 Websters Dictionary for the 3650

Translation for the Nokia Communicator

Websters Dictionary for the Nokia Communicator

Crossword for UIQ

Secret Password/Notes Program for UIQ

SendSMS for UIQ

Translation program

Bible Dictionary for UIQ

Fax Program for UIQ

Shopping list for UIQ

Universal Converter for UIQ

Ticketing System in Use by UK Heathrow Express
(Pocket PC)

HandChannel Avantgo-like Service for the Pocket PC

Pocket PC Streaming Video Security Program for Security Co.

ExControl Today Screen Plugin

CEQuery ADOCE Database Program for the Pocket PC

Pocket Solver for the Pocket PC

Contact Manager for the Pocket PC

French, German and Spanish for the Pocket PC

Time and Expenses for the Pocket PC

Pocket Timer for the Pocket PC

Dictionary for the Palm-size PC

Pocket Spreadsheet - The first Windows CE Spreadsheet
(for the Pocket PC)

Pocket Solver for Windows CE 2 and 3

Pocket German for Windows CE 2 and 3

GraphCalc for Windows CE 2

Pocket Database for Windows CE 1.0

The first spell checker for Windows CE 1.0

Pocket Timer for Windows CE 1.0