First we will need to modify the settings of your MobileMe gallery to allow for iPhone upload. Proceed to http://www.me.com and login with your MobileMe member name and password.
Select Gallery from the menu at the top left.
Select the Gallery you would like to allow your iPhone to upload to from the list on the left.
Click to select the Settings button on the top menu.
Check the selectbox entitled Adding of photos via email or iPhone then click the Publish button.
Now on your iPhone press the Camera icon on your Springboard. Take a picture then open your Camera Roll album.
Press to select the photo you would like to upload.
When viewing the photo press the Send button at the bottom left hand corner of the screen.
A menu will appear from which you press to select Send to MobileMe.
A list of your MobileMe albums will appear. Press to select the desired gallery to upload to.
Your iPhone will then compose a new message in Mail. This message will be sent to MobileMe with the picture as an attachment. MobileMe will then automatically add the picture to your gallery. Press the Send button to continue.
Within seconds your MobileMe gallery will be updated with the image you just sent. This is an extremely easy way to share photographs quickly with others.