See my log below. It seems some Samsung mobile phones does not send user agent to the server when making an Ajax post request.

SAMSUNG-GT-S3100
normal request   GET /Assets/starr.png - - 149.254.217.248 HTTP/1.1 SAMSUNG-GT-S3100/S3100XXIK1+NetFront/3.5+Profile/MIDP-2.0+Configuration/CLDC-1.1 http://xxxxxxx.com 200 1015

ajax request     POST /AjaxCommentPost.aspx r=1182033581967.974 - 149.254.217.248 HTTP/1.1 - - 200 341



SAMSUNG-SGH-F480
normal request GET /securityimage.aspx - - 82.132.138.162 HTTP/1.1 SAMSUNG-SGH-F480/F480ADIA1+SHP/VPP/R5+NetFront/3.4+Qtv5.3+SMM-MMS/1.2.0+profile/MIDP-2.0+configuration/CLDC-1.1 http://xxxxxxx.com 200 1770
ajax request   POST /AjaxCommentPost.aspx r=1219635488243.6 - 82.132.138.162 HTTP/1.1 - - 200 341

Whichever programming language you use these tools are must have tools for a wap/mobilemaster

-Editplus http://www.editplus.com
EditPlus is a text editor, HTML editor and programmers editor for Windows. While it can serve as a good Notepad replacement, it also offers many powerful features for Web page authors and programmers.

-FileZilla http://filezilla-project.org
FileZilla Client is a free, open source FTP client for Windows. It supports FTP, SFTP, and FTPS (FTP over SSL/TLS). The client is available under many platforms, binaries for Windows, Linux and Mac OS X are provided.

-Winff http://code.google.com/p/winff
WinFF is a GUI for the command line video converter, FFMPEG. It will convert most any video file that FFmpeg will convert. WinFF does multiple files in multiple formats at one time. You can for example convert mpeg's, flv's, and mov's, all into avi's all at once. WinFF is available for Windows 95, 98 , ME, NT, XP, VISTA, and Debian, Ubuntu, Redhat based GNU/Linux distributions. WinFF is available in Brazillian Portuguese, Bulgarian, Chinese Tradditional, Danish, English, French, German, Italian, Polish, Portuguese, Spanish, and Turkish.

-Opera web browser http://www.opera.com
Opera is the only Web browser that comes complete with everything you need to be fast, safe and productive online. Opera supports wml natively and provides code validation option on right mouse click. For more info about validating your code check http://validator.w3.org

-Paint.Net http://www.getpaint.net
Paint.NET is free image and photo editing software for computers that run Windows.

-Visual Web Developer http://www.microsoft.com/express/vwd
Visual Web Developer 2008 Express with SP1 provides an ideal environment for creating powerful Web applications.


Feel free to add your favorite tools