Still rocking a P45 and a E8400. :D

PCIE 2.0 AMD does not have any PCIE 3.0 boards. I dont think they will for 2 more years. According to toms hardware. "IN 2012, AMD will introduce its AMD 1090FX and 1070 Chipsets, as replacements to its current 990X and 970. The most interesting part is the new chipsets still will not support PCI-Express 3.0.

The 1090FX will be the top tier 10-series chipset, replacing the 990FX. The 1090FX northbridge will support two PCI-Express X16 links and up to four graphics cards. The 1070 provides one PCI-Express link for two graphics cards. The "Chipset Competitive Landscape" slide shows the new 10-series set to go against Intel's new Ivy Bridge chipset. AMD breaks down what it sees as advantages (more SATA connectivity and 2X16 XF) and disadvantages (PCIE 3.0 and SRT) against the Ivy Bridge. The 10-series chipset will be compatible with current processors, which adds to AM3+'s longevity. The 10-series chipset most surprisingly will not support PCI-Express 3.0. This is a disappointment to this writer, with Intel already gearing up PCI-Express 3.0 support for the Ivy Bridge release. What is still to be seen is how will this affect AMD's Radeon HD 7000 series graphics cards supporting PCI-Express 3.0. This question should be answered by in the end of the year, as the Radeon HD 7000 expected to release around the holidays. The new SB1060 southbridge does provide an improvement over current gen motherboards. The SB1060 will support an eight SATA 6 Gb/s RAID controller, all ports running at 6 Gb/s. This outpaces Intel's 7-series in terms of SATA 6 Gb/s ports. The SB1060 will offer for the first time a native USB 3.0 SuperSpeed controller. Currently, 990FX & 970 don't natively support USB 3.0 but is offered through a third-party controller."

http://www.tomshardware.com/news/AMD-1090FX-1070-SB1060-pcie-3,13918.html

Yeah i just got my rig last september and didn't know it was coming out, Oh well.

still on pice 2. haven't found a good reason (necessity) to buy a new motherboard

my laptop came with PCIE2 that is currently being repaired as we speak.

2 for me. I have a slightly old Asus P5N-D mobo with a good old Nvidia chipset and a Core 2 Quad Q9550 with two GTX 480 cards.
It still performs very, very well.

I voted 2 but I honestly don't know, nor do I know how old 3 is/how long ago it came out, if it came out a while ago, then I probably have it, sense I upgraded my mobo not too long ago but if I was shopping for a new one, I honestly stick with 2 or I don't know, upgrading now, at least for my mobo would have to be 3 I guess, if I don't already have it.

I have a 2.0 motherboard currently in use with a spare motherboard laying around (maybe for a backup PC) that has a 1.1.

I have several PCIe2 mobos, thinking about going PCIe3 maybe at the end of the year or first half of next year.

I have 4 systems with PCI-E 2, and reused an older PIC-E gen 1 motherboard(all AMD based boards) for a simple LinuxMint12 system build for my aunt, If I had the money to upgrade my main computer to PCI-E 3 I would, but I'm personally not too worried about it, as there is not too much of a boost in performance yet, plus I need to get a decent GPU as my old EVGA 9500GT 1GB card(used for PhysX) I had in SLI died, 2 days ago.

i have 2 pci-e 2 motherboards. I was trying to get a pci-e 3 motherboard but they were soldout.