The XDA Developers have done it again, this time with some major speed improvements. Now they have a new hack for Apps2SD that greatly improves performance by way of running your apps directly off of your SD card, thus saving your internal memory.
I for one am very excited about the possibilities this option provides and am hoping that the results continue as they port it over for use on other devices. As of right now it works on the HTC Desire, and the Google Nexus One is their next project. If all goes well, look for this to be ported to any device with a large enough demand, and check back. We are sure to keep you updated.