All great performers have repertoire of one-liners. ColdFusion is no different and here are some cool new ColdFusion 9 one-liners:
1. Take a Word document and convert it to PDF
 
<cfdocument format="pdf" srcfile="/mydoc.docx" filename="mydoc.pdf" />
2. Take a PDF and optimize it (remove extra images, bookmarks, etc that are not needed)
 
<cfpdf action="optimize" source="bigpdf.pdf" algo="Bicubic" destination="smallpdf.pdf">
3. Get an object/record of an artist based on the key
 
<cfset artist = entityLoad('artists',1,true)>
(Change it <cfset artist.setLastName('McCoy')>)
4. Save the object back to the database
 
<cfset entitySave(artist)>
5. Add a map to a page
 
<cfmap centeraddress="275 Grove Street Newton, MA 02466" zoomlevel="8" type="hybrid" />

6. Connect to an imap server
 
<cfimap action="open" server="imap.googlemail.com" username="" secure="yes" port="993" password="" connection="gmail">
7. Add a message box
 
<cfmessagebox type="prompt" name="mes" message="Enter Message" labelok="Send" multiline="true" width="400" />

8. Add a media player to a Flash video file
 
<cfmediaplayer source="/phone.flv" >

9. Put a query into a spreadsheet
 
<cfspreadsheet action="write" filename="test.xls" query="getArtists">
10. Create a multiple file upload UI
 
<cffileupload url="multiUploadProcess.cfm">
Ah, what the heck, here's a bonus one:
11. Process those files and save to the file system
 
<cffile action="uploadall" destination="#getTempDirectory()#">
Pretty cool stuff. All of these new features have a lot of other attributes and possibilities for customization.
There are even a few (creating a progress bar, converting a PowerPoint presentation) that I left off.