1) "Send as" in Gmail
2) Add/edit filters in Gmail
3) Add/create labels in Gmail
4) some URLs in Gmail aren't clickable, even though they are in real Gmail
5) Add/edit tags in Google reader
6) For phones with keyboards, keyboard shortcuts for Google Reader
7) Full read/write in Google Docs
8) More than one IM account per protocol in IM client
9) More than one Google Talk account in IM client
10) More than one IM personality active at a time (all should be able to be active at the same time) in IM client
11) Log IM conversations to SD card in plain text (pref. in format compatible with pidgin)
12) Bluetooth DUN tethering
13) Bluetooth PAN tethering
14) USB tethering (with Cradlepoint support)
15) Wifi tethering
16) Redfly compatibility
17) Solid VNC client, with VNC passwords, and with tunneling through ConnectBot
18) Ability to play M4P/AAC music files (so I don't have to convert them from my iTunes data files, I can just drag and drop them from my computer into my phone)
19) native SIP client, that can work not just with Google Voice, but with other Google Apps
20) Full SyncML client (Contacts, Calendar, Bookmarks, Notes, etc.)
21) Rhapsody client (native, or in-browser support)
22) Hulu client (native, or in-browser)
23) Tivo client (transfer your recorded shows to your Android device)
24) Netflix live player
25) Amazon Video Store (not just MP3's)
26) Amazon Kindle software (like what they did for the iPhone)
27) USAA banking client (like what they did for the iPhone)
28) Bluetooth FTP
29) Bluetooth HID (keyboard/mouse/etc.)
30) Bluetooth BIP (remotely displaying the screen)
should have added these as well:
31) Share, and Share with Note, in Google Reader
32) "Like this" in Google Reader
33) "Email this" in Google Reader