The big deal is that in Opera the Enter Key is now not functioning for search - and this means moving the mouse. When you do as many searches as I do in a day, that's a problem! Unfortunately, the onus is on Opera to make support changes.
Google's history with gmail features makes me feel that the 'plex will not be providing the fix for this any time soon. For example, for a long time, Google's Ajax code in gmail was forcing a double line break in Opera when a single one was entered. I learned to live with that. But Google changes about a week ago turned all multiple line breaks into a single line break - and that makes my longer emails harder to read.
I went to using a different browser for gmail - and I can live with that situation. There's even an advantage - it lets me be logged into Google on one browser and then Opera does not accidentally get "personalized" results.
But I don't want to switch browsers for every search I perform. So my choice is to turn off "Search Suggest" or to move the mouse more often. I turned off Search Suggest.
[edited by: tedster at 10:48 pm (utc) on June 3, 2009]