On deviantART someone uploaded a picture of a lockscreen that can be found in Cydia, which looks pretty smooth. Its called Typophone 4 and can be used on the iPod Touch and the iPhone. To use the Typophone 4 theme, you need a jailbroken iDevice, Lockscreen Clock Hide and you need to install Winterboard to activate it. » TypoPhone: Beautiful Lockscreen For Your iPhone [jailbreak]

InterActiveWeather shows animated weather widgets on the lockscreen of your iPhone and iPod Touch and is the first and only customizable weather theme. All you need is a Jailbroken iPhone or iPod and winterboard installed, then you open cydia and search for InterActiveWeather (form Modmyi). Now purchase this package for $5.00, and activate it with Winterboard. » InterActiveWeather (Winterboard)

PinoySoul is the name of a new theme which is very similar to iNav.The theme is not yet available in cydia, but check out the preview and comments of the creator after the break.
» PinoySoul (Winterboard Theme)

iNav is a new winterboard theme that will soon be released in the ModMyi repository, the theme radically changes your iPhone and iPod looks. The release date of the first iNave winterboard beta will probably be 11.03.2009. Hit the break to see some videos of it in action.
» iNav (spectacular winterboard theme)

We have a brief video demonstrating per-page wallpapers in an upcoming version of WinterBoard. If you’re curious, the girls in the wallpaper are from the Japanese electropop group Perfume, and the theme seen at the beginning of the video is Gradiance v3 by misecia.
» Cydia – Winterboard preview (per page wallpaper)

We have just uploaded information about 7 themes, lockscreens or other theme modifications. Check them out on the themes section.
» iPhoneFreakz themes update – 31/10/08

We have just uploaded information about 7 themes, lockscreens or other theme modifications. Check them out on the themes section.
» iPhoneFreakz themes update – 28/10/08