I have installed the cvs-snapshot of 22/4 on php 5/apache/mysqli and found the following bugs/misfunctioning:
1) The create/edit faq page is broken on ie7. (ok on FF2)
2) The AJAX tag text box is not functioning on both browsers.
3) The site map feature does not function.
4) Tags are separated with spaces instead of commas which make it impossible to have a two word tag like "property tax" for example. when broken into two tags "tax" and "property" it have a much wider and unfocused context.
5) Some terms are hard coded and can not be translated in the lang file.
6) "Password sent" message appears when approaching the admin login page.
Problems related to Hebrew (and probably Arabic too)
7) The AJAX instant response does not render properly. It display gibrish no matter if i use windows-1255 or utf-8.
8) Some form float properties are hard coded and cant be controlled in RTL templates.
9) CAPTCHA is not functioning when language is set to Hebrew and charset is UTF-8. When setting the charset to windows-1255 it works ok but then mod_rewrite is going crazy.
10) System mail seems to not set the content type properly so when using utf-8 lang file the messages received as gibrish.
I hope you wont hate me for this list..

Roy