For those that are interested in moving APPS2SD & the corresponding DALVIK CACHE to the SDcard,you can do so w/the following steps:
1) BACK-UP data on your SDcard to another source(computer,cloud storage,etc...)
2) Partition your SDcard.This can be accomplished using the app ROM MANAGER,or,if you're already running a custom ROM,you can use CWM Recovery to do this.
3) Download TITANIUM BACK-UP & perform a backup of all apps.Then,if desired,convert SYSTEM APPS to USER APPS by long-pressing on an app to see the options list.ONLY DO THIS WITH SYSTEM APPS IF YOU ARE CAPABLE of restoring them,as warned by TIBU.If you don't want to move SYSTEM APPS & keep things as safe,simple,&stable as possible,just stick w/moving USER APPS until you feel more comfortable to deal w/system apps.
3) Now,here's where you have a couple of decisions to make.You can use TIBU to move APPS2SD or to move even more data to the SDcard, download LINK2SD.
LINK2SD allows you to move the DALVIK CACHE,which in turn,frees up more internal memory.Either choice,TIBU APPS2SD or LINK2SD will make a BIG improvement over stock/rooted 2.1.1
Notes:
1) Those already on CM6 or CM7.At this time,I would avoid using the stock APPS2SD & LINK2SD @ the same time.Stock APPS2SD does not 'read' the apps being moved to the SDcard via LINK2SD.Not sure if anything drastically awful would happen,but, I'm suggesting leaving well enough alone.
2) On CM7,some SYSTEM APPS cannot be converted to USER APPS using the TITANIUM BACK-UP conversion feature.Those apps are probably best to be left on the phone's internal memory anyway,for stability purposes.Just MAKE SURE you have performed AT LEAST ONE BACK-UP before moving any APPS2SD,especially if converting SYSTEM APPS to USER APPS & subsequently moving the apps via LINK2SD.
3) For those running stock/rooted 2.1.1,partitioning the SDcard may not be necessary for TIBU APPS2SD* (not sure,I'm already partitioned) but,it is necessary for using the LINK2SD method.
*EDIT : The SDcard MUST be partitioned w/an EXT2,EXT3, or EXT4 2nd partition per TITANIUM BACK-UP.(See change log in TIBU for details{version 3.8.2})
Anyone that has questions on this,please post your concerns/issues/questions here & share your results w/everyone here.