impressive browser support note added

README.md

@@ -5,6 +5,19 @@ It's a presentation framework based on the power of CSS3 transforms and
 transitions in modern browsers and inspired by the idea behind prezi.com.
 
 
+BROWSER SUPPORT
+-----------------
+
+Impress.js is developed with current webkit-based browsers in mind (Chrome,
+Safari), but *should* work also in other browsers supporting CSS3 transforms
+and transitions (Firefox, IE10).
+
+It's actively developed with newest Chromium and tested in Firefox Aurora.
+
+I don't really expect it to run smoothly in non-webkit-based browser.
+If it does, just let me know, I'll glad to hear that!
+
+
 LICENSE
 ---------