Weddingella is a mobile wedding organizer you were looking for.
It helps making wedding organizing process easier and more fun. The application is simple to use while providing many nice features.
Use it to manage guest list with all meaningful details and directly send emails, track invitation delivery progress and RSVPs, arrange table positions in space and make a seating plan up to a chair level, handle task list, plan wedding budget, track payment dues and get prices automatically updated as you change guest count.
Available for iPad, BlackBerry PlayBook and soon Android tablets.