Though the Samsung Instinct Mini and Palm Pre are missing from the list, the guys over at PhoneArena have obtained a document detailing rumored launch dates of new Sprint devices:

•  Palm Treo Pro: Though Brightpoint lists it as available on 3/11, the device is still slated to hit stores on 3/15 with an MSRP of $549.99.
  
• RIM BlackBerry Curve 8350i (iDEN) non-camera version: Launch date is not determined as of yet, but has an MSRP of $479.99.
• Motorola Stature i9: Right after arriving on Boost Mobile, the device is scheduled to arrive at Brightpoint on 3/11 and be available in retail stores on 3/15 with an MSRP of $399.99.
• Motorola i580 (yellow): Slated to arrive at Brightpoint on 3/11 and launch on 3/15 with an MSRP of $269.99.
• LG Rumor 2 (black titanium): Here is where it gets interesting - the leaked document is cut off, suggesting that (perhaps) the black version is scheduled for launch on 3/15 with a second color tentatively scheduled around 3/29.  We'll leave the speculating to you.
  

Should these dates be true, Sprint/Nextel users have quite a bit to be excited about in the coming days.