We recently released an iPhone/iPod Touch Warhawk leaderboard/statistics application that you can find at: http://1337pwn.com/warhawk
The data for our leaderboard application is updated several times per day for every Warhawk player (over 540,000). When possible, the data is even updated on demand. At the request of a couple of users, the 1337pwn.com has put together a quick forum signature that uses the same data.
(Replace ICEMAN101 with your PSN ID)
We hope that you find this functionality useful. Please send any feedback to borocouncilman via the Playstation Network message.
Thank you all for your feedback and support!