Using the HTML5 Database to store tweets

Safari and Chrome both support HTML5 Web SQL Databases
Safari will allow the Database to grow by asking the user for more space (if needed).
Chrome seems to have a rather small storage limit
Performance is improved when accessing the timeline of a user since it can be accessed from the database (no server access)
Searching the tweets in the database is very fast but neither browser seems to support full text searches
In testing it has been handy to have access to older tweets