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 - require valid nicknames
22 - store canonical username for comparison and fetch
23 - use only canonical usernames
24 - use only canonical email addresses
26 - configuration system ($config)
27 - RSS 1.0 feeds of a user's notices
28 - RSS 1.0 dump of a user's notices
29 - RSS 1.0 feed of all public notices
30 - RDF dump of entire site
32 - license on showstream
33 - license on shownotice
34 - design from Open Source Web Designs
35 - TOS checkbox on register
40 - add subscriber remote
42 - receive remote notice
44 - tinyurl-ification of URLs
45 - jQuery for as much as possible
47 - RDFa for stream pages
48 - RDFa for subscriber pages
49 - RDFa for subscribed pages
54 - stay logged in between sessions
55 - use RSS as a subscription
61 - forward notices to Jabber
62 - forward notices to other IM
63 - forward notices to mobile phone
64 - receive notices from Jabber
65 - receive notices from other IM
66 - receive notices from mobile phone
69 - include twitter subscriptions
70 - include Pownce subscriptions
72 - Wrap DB_DataObject with memcached caching layer
73 - login throttle to prevent brute-force attacks
74 - form token in login to prevent XSS
76 - Atom Publishing Protocol