I turned off Winterboard recently to resolve a tremendous memory usage problem. This problem has been fixed with an update today to Winterboard and mobile substrate. Today is July 8′th and with Winterboard enabled the iPhone springboard is responsive and applications are no longer lagging to an unusable state. Thank you developers. What use is an iPhone if it is not modifiable, tweakable, and generally enhanceable. MMS still doesn’t work, and 3G sucks in my neighborhood!!!!!!!! Thank you at&t, geeeez.