That is pretty humorous (for those that don't feel like checking his profile, it claims that he is a Microsoft employee).
That doesn't change the fact that your post combined "heavy" and "bulky." I will give you the fact that "bulky" is quite a subjective term, but heavy is not as subjective. It's a device that is larger than the competition, and the leading competition is the "New iPad." No one is looking at buying the iPad 2 versus the Surface, because the iPad 2 is so much cheaper, but it's also over a year and a half older. Regardless of the iPad, it shouldn't feel heavy because you should very rarely need to actually hold it in the air unlike the iPad. The kickstand alone enables much greater versatility, and it only increases when combined with the Touch Cover.
The Surface loses in the screen resolution corner (and the Surface Pro will continue to lose that fight). Now, as a power user, I would have definitely preferred something akin (maybe I should avoid the word "kin" with Microsoft) to the Retina display, but the heat and reduced battery life really loses it for me. Having said that, I have wanted the Retina display quality in a few games, although, to be fair, I haven't missed it in others. The Surface RT's screen does a good job hiding its lower resolution very well particularly alongside Metro (Microsoft Design), as it suits itself well to nice screens regardless of resolution.
I have both the Touch Cover and iPad Smart Cover, and I honestly can't feel a difference in weight even though it is just an iPad 2 (and not its heavier cousin). In all honesty, I strongly prefer the Touch Cover for multiple reasons. For starters, when combined with the built-in kickstand, I can comfortably use the Surface in my lap without holding it. In fact, I rarely find myself holding the Surface in the air, which is why I think that I really enjoy using it so much. Given a few minutes, I am sure that I could distinguish the heavier of the two, even when just talking 0.35 lbs (difference with covers), but that's frankly the best part about the Surface. I can actually use it on a table with or without the Touch Cover, whereas every iPad requires it, and even then the usability is greatly reduced. Using the Surface on my lap, I find that I have a harder time using the Touch Cover without a solid surface (no pun intended) beneath, and for less frequent typing I love being able to fold the Touch Cover under the kickstand, which lets me flatly rest the Surface on my legs, or even my stomach when I am laying down on my bed. That's something you cannot easily do on the iPad without propping up your legs, uncomfortably holding it in the air, or laying it in your lap and arching your neck.
It's because of all of that that I do not think the Surface is heavy. It's marginally heavier--at best--upon first grab, but you should rarely be holding it. You can if you want too, but most real world situations lead to positions that give the Surface the edge. I personally hate kickstands on phones, but I think that it was brilliant for Microsoft
Throw in the ability to add a microSD card and a USB hub, and I have been thrilled with the versatility of the Surface. Shy of development, I can replace my laptop usage with it entirely. I could never comfortably say that about the iPad.
The iPad's chip is definitely faster than the Tegra 3. I am frankly a little surprised at times when the Tegra 3 is choking, considering the amount of talk I had heard when it was being included in many other devices. Apple has clearly done a very good job in the SoC arena, and I do not know who will be able to take their crown within 2013--I suspect it won't be until 2014 until someone catches up. What I really miss most from the iPad, and Apple products in general, is their battery life. Being that Apple makes the entire product, including the chip, they clearly get the edge here, but they also have amazing batteries regardless of everything else. I hate the inability to replace them, but I have never actually seen a real case where someone needed to do it.
That's not to say that the Surface has low battery life (as I use it throughout the week with WiFi left on to get live tile updates, unlike my iPad, which I instinctively turn off considering I have to enter apps to get meaningful information anyway), but if it had Apple's battery savvy inside of it, then I cannot help but wonder how much longer it might last.
Finally, both the Surface and the iPad fall short on the camera, but I didn't exactly buy either one for a camera. The Surface's camera being intelligently angled has already come in handy once while talking with someone over Skype at the same as I was writing a very long email, and I split-screened the apps (IE and Skype) to be able to see the other person at the same time; that was awesome and very smooth.