Tinman Michael Dell must be miffed after his top secret plans to release three Dell tablets have been revealled on the world wide wibble. Android Central has got its paws on a slide of a roadmap showing three new Dell tablets: one powered by Google's Android platform and two by Microsoft's Windows 7.

It looks like Dell will ship an Android tablet, dubbed "Streak Pro," in Jun. It will have a 10-inch display (1280 x 800 resolution) along a 1.2GHz Nvidia Tegra T25 dual-core chip. Dell will install its Stage 1.5 UI on top of Honeycomb and apparently it'll also throw in an "enterprise application stack.” Unlike the first Streak, which doubled as a phone, it seems its 10-inch brother will be data only.

The two Windows 7 tablets are set to follow the Streak Pro in July and October. There will be a 13-inch Latitude XT-3, which will look like the old pre-iPad desktops. It will have laptop hardware and a standard-voltage Intel processor from the Sandy Bridge family, 4GB of RAM, full HD 1080 support and stylus.

The Latitude ST will tip up in October. This will be a 10-inch unit carrying one of Intel's upcoming Atom Z6xx series Oak Trail tablet chips clocked in at 1.5GHz. This will look like a post iPad tablet and include 2GB of RAM, up to 128GB SSD storage, dual cameras and eight hours of battery life.No word on pricing for any of this.

What is interesting is that while Dell seems to still be supporting Windows 7 as a tablet platform, Dell believes that Android tablets will eventually dominate the tablet market.