Fortunately, our very own alkiera in the StreakSmart/Pocketables forum came up with a clever workaround. It's a live wallpaper called WallStreak that lets you select five different WVGA images to set as static wallpapers so that each screen displays a different image. In other words, it's what a lot of you liked about 1.6 on your Streak.
WallStreak version 0.8 was released back in October and has been confirmed to work on various Froyo builds on the Streak. I actuallly wanted to wait until alkiera put out version 1.0 to write about it, but since there are fewer 1.6-ers out there every day, I thought I should make sure that you guys knew about it now.
Quick video demo below.