Lee Lup Yuen

Lee Lup Yuen is passionate about mobile phones and PDAs, as he is constantly buying new gadgets and programming them in J2ME, .NET, Symbian and AppForge. He has developed commercial applications with mobile technologies like SMS, MMS, WAP, 3G video streaming and location-based services.

Latest Posts

RSS on your phone

RSS (Really Simple Syndication) is a great way to get updates on news, blogs, even calendar events. Now it's possible to read RSS feeds on your phone.

May 10, 2007 by Lee Lup Yuen


Create your own mobile barcode

Mobile barcodes enable you to share URLs and other information easily. Just ask your friends/coworkers to point their mobile phone cameras to your barcode and the encoded information will magically appear in their phones.

April 30, 2007 by Lee Lup Yuen

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Remote terminal on your phone

Our tip today looks intimidating to most people, but may be a life saver to server administrators. If you're a server administrator, you would probably have used text-based terminal protocols like Telnet and SSH (Secure Shell).

April 5, 2007 by Lee Lup Yuen


Phones without cameras

Do you work in sensitive environments where camera phones are banned? As a mobile warrior I always carry an extra non-camera phone (Nokia 2650) in case I need to visit such places.

March 25, 2007 by Lee Lup Yuen


Projecting your phone

You're doing a demo of your mobile application, or you're training your staff to use a mobile application. How best to show a group of people the screens on your mobile device?

March 14, 2007 by Lee Lup Yuen


Looking for power?

Working wirelessly sounds like a terrific idea--until you run out of power for your laptop, PDA or mobile phone. Here are 3 ideas to help you work longer while on the move:Carry extra power: Bring along spare extended-capacity batteries for your laptop, PDA and mobile phone.

March 7, 2007 by Lee Lup Yuen


Newer, safer mobile phones

You may not have noticed it, but the newer mobile phones have enhanced security features to guard against malware, viruses and worms. The newer phones based on Nokia Series 60 Third Edition (e.

February 25, 2007 by Lee Lup Yuen


WAP vs J2ME for your mobile app

In my last post I compared SMS and WAP applications, now I'll write about WAP and J2ME applications. J2ME (Java 2 Micro Edition) provides a platform for you to download, install and execute programs in your mobile phone.

February 15, 2007 by Lee Lup Yuen


SMS vs WAP for your mobile app

An M Files reader asked about the difference between SMS, WAP and J2ME applications, so let me start by explaining the SMS versus WAP approaches for developing a sample mobile application, say movie ticketing.The SMS ApproachFor the SMS approach, we need to develop an application that will receive SMS commands and respond via SMS.

February 5, 2007 by Lee Lup Yuen