Rich webapps hadn't been invented. Smartphones? If you're lucky your flip phone might have a colour screen. If you've got money to burn, you can insert a PCMCIA card into your Compaq iPAQ and try out this new "802.11b" thing. Java was... being Java.
Almost all the software out there - especially if it had a GUI, and a lot of it did - was distributed as binaries that only ran on x86.