It's kind of a dilemma, actually.
On one hand, it's obvious Android has immense manufacturing force behind it, and better hardware with lower prices will come as an eventual thing. But that means adopting any Android tablet at any time is a bad idea since it gets obsolete quickly.
On the other, it's not clear how much more refined Honeycomb can get at this stage short of Google introducing 3.0.1, 3.0.2, or 3.0.3, and then eventually they'll have to reach 3.1. Android has stayed relatively the same for over a year now, only adding more features. Each time a new iteration comes out, users yearn and pray for better performance. Obviously up to Honeycomb, that's still not Google's highest priority.
It's the reverse for iOS. It's clear Apple is very capable of pushing out faster hardwares every 12-month period. It's also clear that even without pushing hardware, their software performance is already top-notch or close to it in the market. But they just lack features severely, and they are very stubborn about bringing more features. It took some tens of pages of discussions on their developer forums and about some hundreds of bug reports later for them to consider adding the option to the mute/lock switch (or it'll still be a mute switch now). They also stubbornly refuse to adopt something a competitor does better, and the result is the notification system has sucked forever, despite the media lashing at it and users crying about it. It also took like 4 years for them to bring multitasking, just because... they didn't want to do it the way competitors did.
And the way I look at it, there is not a lot they can do to iOS 5 to differentiate themselves from competitors. Both because other OSes are mimicking iOS features, and because others have really good implementations of some features that iOS has to reach eventually. They can either choose to stubbornly march on with some little features added into iOS 4, or they can choose to give in to user demand, revise the system to better fit the tablet, and win over the market for the next few years.
It's a matter of pride versus recognition for Apple, whereas for Android manufacturers, it's mostly just a matter of refinement, and moderation.