The problem with current mobo's is that they feature new sockets. In the P4 environment that would be the LGA775. These mobo's have many new stuff generally just as PCIexpress, DDR2, blablabla.
The abit AI7 looks like a very nice board however. The intel 865PE chipset is afaiik a very good one. Furthermore it has all the standard Old gen P4 goodies such as 800MHz FSB, 4*dual DDR400, 2*SATA 150 w/ RAID 0/1, USb 2.0, onboard sound/lan. More it has 3 firewire ports which could always be nice.
So imo, if you want P4 (AMD outsold Intel in Retail Desktops
) and do not want to go into the new P4 LGA775 FF (which require more $$$ for PCI-E vga cards, CPUs (a lil), DDR2 Memory etc),
then I'd say it looks like a very nice board