Add a bookmarklet to Mobile Safari on your iPad or iPhone to post the Title and Link to the current page to the Twitter App.
Just create a new bookmark in Mobile Safari and hit 'Save'. Then edit this new bookmark and replace the complete URL with the following code:

javascript:document.location.href=('twitter://post?message='+encodeURIComponent(document.title)+'%20'+encodeURIComponent(window.location.href));