I don't know if you've looked at the Surface. Basically, you turn it on, and you get an opening page like on a telephone, with a lot of small boxes (of varying size) on it. These represent simple underlying apps that will take you directly to wherever you want to do -- Word, Excel, note-taking programs, National Weather Service, or specific websites. So, you turn it on, tap "TOP," and The Online Photographer" opens up. There is apparently no such app for LuLa. With these apps, you don't have to open up anything else, or go anywhere to do anything, you just touch the app, which can be downloaded from the Microsoft app store. The specific website apps are free. Google has about seven of them.
When I want to go to Lula, it's not a great hassle -- I go to the search bar and type in lumin or some such, and as soon as I start typing the Surface looks for previous searches for the same name, and "Luminous Landscape" pops up. I touch that and I'm good...but an app would be nice.
are you expecting your Windows 8 device to have mobile app support akin to what iOS, Android and Windows Phone devices have? While celebrating the array of software that can run on your "Windows laptop with a touchscreen but no keyboard or track pad" you might take this opportunity to realize that when it comes to "mobile software", designed to work well on a device with no keyboard or trackpad, the Surface product line is for now severely lacking. This is why many of us view it as suffering from a hardware/software mismatch.
I'm not really here to defend Surface. I bought one, which serves my needs, but maybe not yours. But yeah, I do expect it to work like IOS, Android and Windows phones, at times, and it does. (If I understand your question.) I really don't need a million apps -- nobody does -- but it gives me everything that I have on my iPhone except a phone connection, which I no longer need, because my iPhone is good enough for that. It has an optional keyboard that's about as good as what you get on a laptop (I'm a professional writer, and I can type on anything) and quite a good trackpad. I'll add that I personally own two iMacs, a Mac Pro, and a Mac Air and an iPhone, which are my main working machines, so it's not like I'm a Windows fanboy. I just find that the Surface is a useful machine, seemingly (at this point) more capable than either iPads or Mac Airs (heavier than an iPad, lighter than a Mac Air) and I'll probably use it to replace my Mac laptops while traveling; but I'm still experimenting with it.