I tried buying from the AmiStore from my OS4.1 installation last night for the first time.
Of course, I failed because I didn't have an account, and it didn't give me a link, but it did say something about "AmiSphere". I'm a smart guy -- I can find it.
So I loaded up OWS and googled it and found the account creation page. I filled out the form, which it rejected because there was a ReCaptcha, which OWS doesn't support. Of course, I then tried IBrowse and NetSurf 3.7 (which wouldn't even load the page).
So, here we are. I can't use AmiStore because the AmiSphere web site doesn't support Amiga OS 4.1 browsers.
Does that seem right to anyone?