How long you willing to wait?
I'm actually not in a huge rush. The DX is a good device, but a great 'phone.' It does the trick. As I see it, the longer I go with my DX, the more value I get out of it, and the more time I have to convince my wife to let me have her upgrade since I used mine for the DX last Fall.

But if, and I say IF, the ip5 actually had the criteria I am looking for in my next phone, you can bet I'd be on the pre-order list and anxious as heck for the phone to arrive. For now, while so much of the ip5 is just noise on the rumor mill, the waiting game is a non-issue for me.
That said, I am a bit jealous of you guys that have the ip4 on Verizon today. If anyone wants to trade for a DX, hit me up. haha
I'm in a super huge rush, despite my phone "doing the trick". I have the Fascinate that I was forced to sign a 2 year contract for because Verizon screwed me over with 7 bad Motorola Droids in a row. It's a nice size, the screen is good enough, but it's a light, cheap, plasticy piece of junk.
My mom used her upgrade last week to get the iPhone, and my dad and brother are using theirs in November (dad's getting an iPhone; my brother thinks everything Apple makes sucks and is sticking with an android of some kind). Mine isn't until May 2012. No way I'm waiting that long. I don't have the money to pay full price for one but like I said, waiting until May 2012 is out of the question for me. I want one of these things so bad, and my mom getting one just made it worse. Thank god I don't live in their house anymore. It'd be torture!
Whatever iPhone is out by December (if my dad and brother's phones last until their upgrade, I HAVE to ask for one for Christmas, I can't wait any longer), that's what I'll get. I don't care which one it is.