8 + disallow login if user is logged in
9 + disallow register if user is logged in
10 + common_current_user()
12 + session variable for login
17 + subscribe links on profile
20 + disallow direct to PHP files
21 - use only canonical usernames
22 - use only canonical email addresses
23 - require valid nicknames
25 - configuration system ($config)
26 - RSS 1.0 feeds of a user's notices
27 - RSS 1.0 dump of a user's notices
28 - RSS 1.0 feed of all public notices
29 - RDF dump of entire site
33 - design from Open Source Web Designs
37 - add subscriber remote
39 - receive remote notice
41 - tinyurl-ification of URLs
42 - jQuery for as much as possible
44 - RDFa for stream pages
45 - RDFa for subscriber pages
46 - RDFa for subscribed pages
51 - stay logged in between sessions
52 - use RSS as a subscription
58 - forward notices to Jabber
59 - forward notices to other IM
60 - forward notices to mobile phone
61 - receive notices from Jabber
62 - receive notices from other IM
63 - receive notices from mobile phone
66 - include twitter subscriptions
67 - include Pownce subscriptions
69 - Wrap DB_DataObject with memcached caching layer
70 - login throttle to prevent brute-force attacks
71 - form token in login to prevent XSS
73 - Atom Publishing Protocol