Digi,
Here are a couple of screenshots showing the results in both OS2 and OS4 kernels.
Seems like the OS4 version is more 'complete', however that also means there are double occurencies of hardware being listed.
For example, if you look at the Realtek NIC you will find the following:
1) r8169_0 Network Adapter
2) Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
They are certainly referencing the same hardware, that being the NIC.
I think similar can be said for other devices such as SB chipset and matching IDE_x/1/2 xATA controller icons, or the PCI_Bus_0 and duplicate PCI_Bus_0 icons. PCI_Bus_1/2/3 are not duplicated, however in the OS2 version of the output only PCI_Bus_0 is shown.