Emulating selenium APIs within WebDriver

Emulating selenium APIs within WebDriver which allows for the WebDriver and Selenium APIs to live side-by-side, a simple sample FYI:

WebDriver driver = new FirefoxDriver();

driver.get("http://www.google.com.hk/");

//PageObjects design pattern
GoogleSearchPage googlesearchpage =
PageFactory.initElements(driver, GoogleSearchPage.class);

String baseUrl = driver.getCurrentUrl();

//Change into Selenium instance
Selenium selenium = new WebDriverBackedSelenium(driver, baseUrl);

//Using selenium method
selenium.type("q", "Gmail");
selenium.click("btnG");

//using PageObjects and driver
googlesearchpage.clearsearchtext(driver);

googlesearchpage.searchfor(driver, "joychester");

//change back to Webdriver instance
WebDriver driverInstance =
((WebDriverBackedSelenium)selenium).getUnderlyingWebDriver();

googlesearchpage.clearsearchtext(driver);

googlesearchpage.searchfor(driverInstance, "Gmail");

//close browser and stop selenium
driverInstance.close();
selenium.stop();