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
22 - require valid nicknames
23 - store canonical username for comparison and fetch
24 - use only canonical usernames
25 - 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
38 - content negotiation for interface language
39 - content negotiation for content type
40 - content negotiation for encoding
41 - content negotiation for charset
42 - If-Modified-Since support
47 - add subscriber remote
49 - receive remote notice
51 - tinyurl-ification of URLs
52 - jQuery for as much as possible
54 - RDFa for stream pages
55 - RDFa for subscriber pages
56 - RDFa for subscribed pages
61 - stay logged in between sessions
62 - use RSS as a subscription
68 - forward notices to Jabber
69 - forward notices to other IM
70 - forward notices to mobile phone
71 - receive notices from Jabber
72 - receive notices from other IM
73 - receive notices from mobile phone
76 - include twitter subscriptions
77 - include Pownce subscriptions
79 - Wrap DB_DataObject with memcached caching layer
80 - login throttle to prevent brute-force attacks
81 - form token in login to prevent XSS
83 - Atom Publishing Protocol