ASUI only talks to icd2 when you tell it to connect and doesn't do any wifi polling, but the wifi statusbar icon does poll signal strength every second when connected, it spews a lot of wifi related calls when you hildon-desktop from console. Don't leave debug binary installed, not only will it fill up your partition but it will drain battery faster since it dumps a lot of text to the log. Only install it if you are having the battery drain problem and restore test/release binary after a few hours.
I couldn't find anything that would cause dpad arrows to not match screen orientation but if it was caused by another app rotating the screen and not also rotating arrows then this will fix it.