Dell is purported to be working on the Opus One to succeed the Streak
Allegedly, it's being heard that Dell is currently in the process of developing a device going by the code name Opus One and should make its presence known during May of 2011. Now what's interesting about this potential successor is that it'll be packing along a 1.2GHz dual-core processor within its confines and an upgraded resolution believed to fall somewhere around the 1280 x 800 range.
For those who manage to find a place in their hearts for the Dell Streak, you'll probably want to keep an eye out for this one when it begins to become more well known.
source: Streak Smart via BGR