I think we are getting mixed messages. I will try to explain myself in full.
When I send the same message twice I get a 403 error due to twitters rejection of the repeat message. I'm not sure if attaching the time to each tweet will stop it and I don't know how to read the time over Ethernet and attach it to the tweet. My second plan of action was to create a list of about 30 messages that mean the same thing, these will be sent one after another, each time the button is pressed.
Example
buttonPressed > Send message 1
buttonPressed again > Send message 2
buttonPressed again > Send message 3
etc
The only issue I see with this so far is that if the unit is reset after say message 5 it could cause a 403 by repeating the same message too soon.
I'm not sure how to do this. This is my second project and I could do with a pointer. I've scanned the Arduino Cookbook and countless webpages, references and so forth. I did something like this in Processing once but I cannot remember how and those files disappeared with my old computer.
Sorry for being a pain, Coding isn't my strong point at this stage.