Earlier quoted context omitted.
I always felt that for a product called webOS, Palm had one of the worst mobile browsers. The big missing feature I remember was lack of support for downloadable fonts. I don't remember the Touchpad itself being particularly polished (although the corded charger itself is supposed to be very high quality). Some of the touch stuff was pretty slick (the rubber band effect in particular), but a lot of it was pretty infu…
I don't know if I want to value your opinion on browsers of the top feature for you is custom font download. it was the mobile browser I could access more sites' content with at the time. even flash content, for better or worse! also I could download anything and open any local file, not just what apple allowed me.
Not the top feature, but one of the most glaring. At the time I was working on a site that used TypeKit and the only platform I was using that TypeKit didn't support was webOS. The whole thing seemed quite odd as they essentially yanked out a working feature of WebKit when making the browser. Flash, OTOH, was something that didn't die soon enough. I'd've much rather seen support for actual standards than Flash, but HP made a bunch of odd decisions with webOS and the Touchpad. There's some pretty delicious irony in a platform with web in the name having a mediocre web browser.
I also had a bear of a time getting email and WiFi set up for whatever reason, I relegated my Touchpad to paperweight status pretty quickly though. Even basic UI things like scrolling and copy-and-paste just didn't work all that well. Here's a review I found that highlights the distinct lack of polish that webOS had.
https://shawnblanc.net/2011/07/hp-touchpad-review/
Overall I thought RIMM/BlackBerry did a much better job with BB10 than Palm/HP did with webOS.