If the leaked specs are true, and HP can get this to retail at around $400-500, then they will have a winner on their hands.
Just for my own curiosity, I tried to spec a BYOB that would match the features...I came close, but could not match them all! (dual gigabit NIC's are nearly impossible to find on mini-itx motherboards).
I built the idea around the mini-itx spec for compact size.
Here's the "what-if" box I came up with.
Case: Lian Li PC-Q25 ($99)
(5 hot-swap bays on a SATA-III backplane, can hold up to 7x 3.5" drives --or-- 6x 3.5" drives plus 2x 2.5" drives total)
Motherboard: ASRock FM2A85X-ITX ($99)
(7 SATA-III ports with USB-3/eSATA ports)
CPU: AMD A4-5300 3.4GHz 65W TDP ($55)
RAM: G.Skill 4GB (2x2GB) ($38)
RAM: Corsair Vengance 8GB (2x4GB) ($63)
PSU: SeaSonic SSR-360GP ($60)
(I know there are cheaper ones, but I'm a SeaSonic fan!)
HDD: Toshiba 500GB 7200RPM ($55)
Cheapest cost: $406
I went with AMD strictly for cost. The cheapest Haswell CPU is nearly $200. No way that would make the budget.
The FM2 board I picked has 7 SATA3 (6Gb/s) ports and a RAID controller supporting 0/1/5/10 which eliminates the need to buy a separate HBA card to add the extra SATA ports needed (though most BYOB followers will want a dedicated RAID-5 card).
I am looking to replace my aging HP EX490 and this just may be the box to do it.