iPhone / Gmail Issues

To any iPhone and Gmail users out there:  Have you experienced any issues with the "Push" feature over the last couple of days?

I've had my Gmail set up on my iPhone since I got the phone in October. I have it set it up via the Microsoft Exchange work-around per the Google Sync instructions. It had been flawless. I was actually getting my Gmail messages on my phone before I'd see them on my computer.

Then, all of a sudden (yesterday), it started to act up, pushing e-mails to me sometimes up to 20 minutes later - or more. What's weird is that my Calendar and Contacts sync is still nearly instantaneous.

Anyone else experiencing this?