How much app storage space is free, out of the box? Sure, apps2sd is coming, but given HTC's Sense update track record, it may be at least a few months later than Nexus. This is probably a given now, considering the some Nexus owners are already getting the update as I type this.

Free space out of the box for devices I have tried or owned:

G1 = less than 100mb
Nexus = 200 MB
Droid = 248MB
Incredible = 748mb

 

That would be odd, since Incredible would have over twice the free space. I have 304mb of third party apps installed and still have 448mb free. EVO has a 1gb rom, so I expected about 650mb free. Incred only has a 512mb rom, but uses it only for the OS and stock apps. All third party apps goes to 748mb of flash memory and 6.6gb is free for media storage.

 

As I said, the Inc uses the 512mb rom for the OS and stock apps. All third party apps are placed in the 748mb of allocated flash memory. I have 304mb of apps installed and 444 free. I have way more apps than would fit on my Droid. This is why there is only 6.6gb free for media and not more of the 8gb that is buiilt in.

Added:

When 2.2 comes, app space will not be an issue, but HTC but may be a while.

 

The Incredible shipped with allocated flash memory out of the box (not rooted, retail unit). I have not rooted, but still have 748mb free for apps Inc has 8gb of internal flash, but 748mb of it is allocated for apps already.

The 512mb rom has the OS and stock apps, and that is it. Anything you install from the market goes straight to the 748mb allocated flash memory. HTC did this and it is a native function of the device

 

True, but all of us HTC Sense users will have to wait until later in the year for 2.2.

As far as EVO being set up like Incredible, EVO does not have any built in flash to allocate- just has the rom, but having only 360mb free with a 1gb rom makes no sense. Even after subtracting for the OS and stock apps, should be about 600mb free.