APB Reloaded's East Coast server move to Washington, DC will be taking place later this week. This should help improve latency times for those playing in the eastern half of North America.
The blog also lists the nitty-gritty details of Releases 79 (May 5th) and 80 (May 10th). These changes include exploit fixes and tweaks to several weapons to bring them in line. GamersFirst is saving the really big bullet points for the May 18th update, which will coincide with the open beta. The blog hints that we should hopefully be hearing about the features for this mega-patch soon.
You can read the full details over on the APB Reloaded dev blog.