Oh cool, James Gosling replied in his blog:
http://blogs.sun.com/jag/entry/java_store_β_payment_and
[quote=""]
Go Sun! Stick your head into the ground! Even further! I can still see your feet!
This shouldn’t have been released to the public yet 
It’s embarrasingly bad.
Cas 
:), maybe they are looking for petrol , go go go !
It’s the only way they’re going to make any money at this rate.
Kev
Jeez, I think I’ve never seen a less responsive app :o.
Try showing this to someone and convince him that java is not actually very slow.
Well, I’da written it for 'em, but they comprehensively failed to hire Kev and me back in January, and so this is what they get 
Cas
Ssssshhh, thats really not anyone’s fault than circumstance.
Kev
There may have been more to it than that. But nevermind. Maybe next year?
Cas
The link to the launcher2.jnlp for the Java Store seems to have been changed on James Goslings blog. Does anyone have the direct link?
or
http://store.java.com/client/launcher2.jnlp
I still cannot understand how they can do something so slow ?? that’s crazy to show only tens button ?? do they forget a while(true); somewhere ??
EDIT : oups sorry this was my jnlp properties, it still works but not in a web browser…
and this one seems to requiere a password
http://store.java.com/client/launcher.jnlp
PS:
to reach the warehouse
https://store.java.com/warehouse/site/Login
as it is open to limited country you can use a US proxy like
http://directproxyserver.com/
then you only use you regular sun forum account
(NB: the simpliest proxy to use is often google translate (translate a page make it proxied) but it is sometime not working as expected)
you can try this one (below)
I know I have a bad track record of obvious hate for JavaFX… but I have to say… I’m impressed.
I am truly impressed JavaFX can behave as slowly as it does on my 2.6GHz quadcore 6GB RAM/1GB VRAM box. How can the simple action of dragging the window operate at 2 FPS?
Seriously, JavaFX is the inverse of Moore’s law. JavaFX’s slowness will always be one step ahead of hardware’s speed advances.
However, to this app store’s credit … after waiting for 2mins and several “interrupts” … the app finally loaded all 3 items in the category I picked.
Amazing!
edit: well i just noticed the dragging problem only happens when the terrible ajax-ish loading animation is running. When the animation is not running, the dragging is not AS bad, but it’s still pretty pathetic : The entire interface is a slap in the face. The main drop-down takes up to 2 entire seconds to respond. Oh, and clicking on an item inside that drop-down? Yea, it usually takes 3 tries before it acknowledges my click.
Come on, Sun, this interface is a joke! I would get fired from my job if I released this.
As with other store, games are going to be a significant portion of the apps, but there will be also social network, utilities, entertainment, art, design,
communication, etc.
Which version of Windows/Java are you using? I am not seeing this issue and it runs great on my vista machine. Load in 7 sec
Appearantly, you’re from Sun. I’m very tempted to say that it doesn’t really matter what OS I’m running, because… well, first, Java is supposed to be platform independant, second the UI is crap on all platforms, and third, you should just start over again. Doing networking on the EDT is unforgivable.
But, to answer your question: Vista 64 bit Home Premium. Quadcore with 4GB RAM and 20mbit connection.
Further… ‘load in 7 sec :-)’ is nothing to be proud of. The first launch after boot of FireFox is faster than that.
That somebody from Sun registers here, to actually defend this ‘product’ worries me beyond all else. Isn’t it enough that you can’t find a single positive feedback on this forum, or well, anywhere? Maybe you have this cluster of test machines in the same datacenter as the hosting servers, and you’re enjoying 1ms ping, which obscures any network delay?? I mean… there must be something making everybody at Sun totally oblivious to the technically bad design of this app.
1 or 2 seconds for IE everytime 
EDIT :
the store cannot be defend, it does not do anything special and it is slow even done in DHTM+javascript it would be a t least 10 times faster (and really cross-platform), there is something wrong in it, you should better look where is the bottleneck
If this app is developed in JavaFX then I’m very tempted to say that JavaFX is still immature in terms of end user experience, especially about start-up time. I tried the demos on javafx.com a couple of weeks ago and the end user experience was still terrible! The demos didn’t load fast and there was no progress bar or something similar! I’m really worried since they’re just demos and are far from big apps. Ho, and there’re still browser integration issues for Chrome.
What’s promising I think though is that once loaded, a JavaFX app runs fast from what I experienced.
Just trying to help - What’s your Java version?