I agree, great for those running Safaricom's (expansive) per minute billing. 
<div><br></div><div>I have installed the app using Wine on Fedora 15 with Gnome 3.0. Notifications on the Title Bar, same place Chrome now puts its controls/title for focussed tab.</div><div><br></div><div>recommendations:</div>
<div>add support for decimals in cost per MB.</div><div>you can even have field for MBs purchased and Cost so that it automatically calculates this.</div><div><br></div><div>Congrats!</div>