Another option for SMS management is now available from the iSMS developers site. iSMS shares the main features such as SMS forwarding to multiple recipients along with deletion of singular SMS messages as it’s counterparts Wetool and SMSd. The one feature that this application has which the others lack are support for smileys . Current downloads from the developers site come in pxl format or you can download below as a regular application program. Unzip and upload into the Applications folder on your iPhone. As with any applications you manually upload into your iPhone, be sure to set the executable permissions to 755. * Now available on Installer. *

Screenshots:

If you’ve grown tired of your stock SMS Balloons or just want a new look, try out these simple pixel style comic balloons. Only two colors for now, one with a Blue outline and the other Pink. Download Below. Extract and upload via sftp the ballons of your choice into the Applications/MobileSMS.app folder of your iPhone . Balloon_1.png = You and Balloon_2.png = Them. If these aren’t up your alley, try these.

Screenshot:

There’s a tweak available on Installer using: http://iphone.totalmatrix.net as a source and it allows you to bypass the current 1000 SMS message limit for the iPhone. The tweak can be found under Tweaks (1.1.1) and is called “No SMS Limit”. The archived messages while hidden from the stock iPhone text messaging application can all be accessed using SMSD which i previously posted about.

This application much like Wetool addresses some of the shortcomings of the SMS messaging application on the iPhone. The major features which are included on SMSD which Apple has neglected to add are deletion of individual messages, forwarding of SMS messages to groups of people and a built in character counter. The application is at version 0.09 but apparently seems stable in regards to the advertised features.

A more thorough overview taken from the developers site:

Features (that Apple missed):

Delete individual messages
Different views for incoming and outgoing messages
Templates
Backup all message through mail.
Compose new messages. (Apple got this right.)
Reply to messages. (Well, Apple did not miss this one.)
Forward messages.
Support for concatenated SMS (long SMS).
Send/Forward messages to multiple contacts.
Character counter.
Send Contact Information through message.
To install manually:

Put the extracted zip dir (SMSD.app) in /Applications on iPhone. From v0.09 onwards, you will also have to copy com.amrut.iphone.SMSD.plist to /Library/LaunchDaemons. And last but not the least, dont forget to set executable permissions for SMSD and SMSDNotifier files.

Or

Install it using installer.app. (Which Should Be Available Soon)

Screenshots:

Here are some mods of the matte SMS bubbles I posted about earlier incorporating some comic strip characters like Calvin & Hobbes and also Dilbert and Dogbert. Four different SMS Bubble colors are included in the zip file for each character. To install, unzip and upload via sftp into the Applications/MobileSMS.app folder of your iPhone.
Download Below: