LPAR questions

I have been reading about LPAR and I have a couple questions:

1) It appears that if the primary partition goes down, say for PTFs or to
install the next release of OS/400, then all partitions must go down. Is
this correct?

2) Is the smallest unit that can be moved among partitions a whole IOP? i.e.
If I wanted to move a V.24 comm port from one partition to another, would I
have to move everything on the IOP associated with that comm port (perhaps 4
comm ports instead of just the one I ?

3) Seems the same for other IO devices. If I have an IOP with a storage
controller on it that has the CDROM and TAP01, then I would have to move
that whole IOP to the other partition, including all devices. Either that or
have redundant IOPs and controllers and use some kind of external switching
mechanism such as a SCSI switch or device with multiple interfaces on it.

4) How are the ECS hardware and console shared? Can I still have a 5250
console (DSP01) or do I have to use the LAN console and Ops Navigator?

5) What happens to the OS/400 and IBM program products licensing? Do I pay
IBM for one copy of V5Rx and then I can run it on all the partitions, or do
I have to pay for each partition separately, and same with the LICPGMs?

Thanks All,
-Marty